diff --git a/sale_start_end_dates/README.rst b/sale_start_end_dates/README.rst
new file mode 100644
index 00000000000..f28f515d298
--- /dev/null
+++ b/sale_start_end_dates/README.rst
@@ -0,0 +1,93 @@
+====================
+Sale Start End Dates
+====================
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fsale--workflow-lightgray.png?logo=github
+    :target: https://github.com/OCA/sale-workflow/tree/15.0/sale_start_end_dates
+    :alt: OCA/sale-workflow
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/sale-workflow-15-0/sale-workflow-15-0-sale_start_end_dates
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
+    :target: https://runbot.odoo-community.org/runbot/167/15.0
+    :alt: Try me on Runbot
+
+|badge1| |badge2| |badge3| |badge4| |badge5| 
+
+This module adds the fields *Start Date* and *End Date* on sale order
+lines (requied fields when the product has the *Must Have Start and
+End Dates* property). You can also define a *Default Start Date* and
+*Default End Date* on the sale order; when set, these dates will be used
+by default on new sale order lines. Upon invoice creation, the values of
+the start/end dates of the sale order line are copied to the start/end
+dates of invoice lines.
+
+This module is a technical module: it is designed to be used with other
+modules such as the *sale_rental* module.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/sale-workflow/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/sale-workflow/issues/new?body=module:%20sale_start_end_dates%0Aversion:%2015.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+~~~~~~~
+
+* Akretion
+* Sodexis
+
+Contributors
+~~~~~~~~~~~~
+
+* Alexis de Lattre <alexis.delattre@akretion.com>
+* Sodexis <dev@sodexis.com>
+* Serpent Consulting Services Pvt. Ltd. <support@serpentcs.com>
+
+Maintainers
+~~~~~~~~~~~
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+.. |maintainer-alexis-via| image:: https://github.com/alexis-via.png?size=40px
+    :target: https://github.com/alexis-via
+    :alt: alexis-via
+
+Current `maintainer <https://odoo-community.org/page/maintainer-role>`__:
+
+|maintainer-alexis-via| 
+
+This module is part of the `OCA/sale-workflow <https://github.com/OCA/sale-workflow/tree/15.0/sale_start_end_dates>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/sale_start_end_dates/__init__.py b/sale_start_end_dates/__init__.py
new file mode 100644
index 00000000000..0650744f6bc
--- /dev/null
+++ b/sale_start_end_dates/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/sale_start_end_dates/__manifest__.py b/sale_start_end_dates/__manifest__.py
new file mode 100644
index 00000000000..a963cf8e91c
--- /dev/null
+++ b/sale_start_end_dates/__manifest__.py
@@ -0,0 +1,18 @@
+# Copyright 2014-2021 Akretion France (http://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# Copyright 2016-2019 Sodexis (http://sodexis.com)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "Sale Start End Dates",
+    "version": "16.0.1.0.0",
+    "category": "Sales",
+    "license": "AGPL-3",
+    "summary": "Adds start date and end date on sale order lines",
+    "author": "Akretion, Sodexis, Odoo Community Association (OCA)",
+    "maintainers": ["alexis-via"],
+    "website": "https://github.com/OCA/sale-workflow",
+    "depends": ["account_invoice_start_end_dates", "sale"],
+    "data": ["views/sale_order.xml"],
+    "installable": True,
+}
diff --git a/sale_start_end_dates/i18n/ca.po b/sale_start_end_dates/i18n/ca.po
new file mode 100644
index 00000000000..8f14b55c4c8
--- /dev/null
+++ b/sale_start_end_dates/i18n/ca.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Catalan (https://www.transifex.com/oca/teams/23907/ca/)\n"
+"Language: ca\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Comandes de venda"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Línia de comanda de vendes"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/de.po b/sale_start_end_dates/i18n/de.po
new file mode 100644
index 00000000000..21ce641953b
--- /dev/null
+++ b/sale_start_end_dates/i18n/de.po
@@ -0,0 +1,119 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: German (https://www.transifex.com/oca/teams/23907/de/)\n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr "Vorgabe-Enddatum"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr "Vorgabe-Anfangsdatum"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, fuzzy, python-format
+#| msgid ""
+#| "Default Start Date should be before or be the same as Default End Date "
+#| "for sale order %s"
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr "Vorgabe-Anfangsdatum muss im Auftrag %s vor ooder am Enddatum liegen"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr "Enddatum"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr "Fehlendes Enddatum in Auftragsposition des Produkts '%s'."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr "Fehlendes Anfangsdatum in Auftragsposition des Produkts '%s'."
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr "Muss Anfangs- und Enddatum haben"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr "Anzahl Tage"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Verkaufsauftrag"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Auftragsposition"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr "Anfangsdatum"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+"In der Auftragsposition zum Produkt %s muss das Anfangsdatum vor oder am "
+"Enddatum liegen."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, fuzzy, python-format
+#| msgid "Number of Days"
+msgid "Wrong number of days"
+msgstr "Anzahl Tage"
+
+#~ msgid "Missing number of days for sale order line with Product '%s'."
+#~ msgstr "Fehlende Anzahl Tage in Auftragsposition des Produkts '%s'."
+
+#~ msgid ""
+#~ "On the sale order line with Product '%s', there are %d days between the "
+#~ "Start Date (%s) and the End Date (%s), but the number of days field has a "
+#~ "value of %d days."
+#~ msgstr ""
+#~ "In Auftragsposition des Produkts '%s' liegen %d Tage zwischen Anfangs- "
+#~ "(%s) und Enddatum (%s), das Anzahl Tage -Feld weist jedoch %d Tage aus."
diff --git a/sale_start_end_dates/i18n/el_GR.po b/sale_start_end_dates/i18n/el_GR.po
new file mode 100644
index 00000000000..30ffc139d48
--- /dev/null
+++ b/sale_start_end_dates/i18n/el_GR.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Greek (Greece) (https://www.transifex.com/oca/teams/23907/"
+"el_GR/)\n"
+"Language: el_GR\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Εντολή Πώλησης"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/es.po b/sale_start_end_dates/i18n/es.po
new file mode 100644
index 00000000000..ff5608763fe
--- /dev/null
+++ b/sale_start_end_dates/i18n/es.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Spanish (https://www.transifex.com/oca/teams/23907/es/)\n"
+"Language: es\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Pedido de venta"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Línea de pedido de venta"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/es_ES.po b/sale_start_end_dates/i18n/es_ES.po
new file mode 100644
index 00000000000..f80dff199d9
--- /dev/null
+++ b/sale_start_end_dates/i18n/es_ES.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Spanish (Spain) (https://www.transifex.com/oca/teams/23907/"
+"es_ES/)\n"
+"Language: es_ES\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Pedido de venta"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/es_VE.po b/sale_start_end_dates/i18n/es_VE.po
new file mode 100644
index 00000000000..a0ef7b27f1f
--- /dev/null
+++ b/sale_start_end_dates/i18n/es_VE.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Spanish (Venezuela) (https://www.transifex.com/oca/"
+"teams/23907/es_VE/)\n"
+"Language: es_VE\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Pedidos de venta"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Línea de pedido de venta"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/fi.po b/sale_start_end_dates/i18n/fi.po
new file mode 100644
index 00000000000..40c43762039
--- /dev/null
+++ b/sale_start_end_dates/i18n/fi.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+msgid ""
+msgstr ""
+"Project-Id-Version: sale-workflow (8.0)\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2015-09-09 12:27+0000\n"
+"PO-Revision-Date: 2015-09-03 07:11+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: Finnish (http://www.transifex.com/oca/OCA-sale-workflow-8-0/"
+"language/fi/)\n"
+"Language: fi\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Myyntitilaus"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/fr.po b/sale_start_end_dates/i18n/fr.po
new file mode 100644
index 00000000000..1527671d17d
--- /dev/null
+++ b/sale_start_end_dates/i18n/fr.po
@@ -0,0 +1,126 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* sale_start_end_dates
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2023-06-20 10:09+0000\n"
+"PO-Revision-Date: 2023-06-20 10:10+0000\n"
+"Last-Translator: Alexis de Lattre <alexis.delattre@akretion.com>\n"
+"Language-Team: \n"
+"Language: fr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr "Date de fin par défaut"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr "Date de début par défaut"
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid ""
+"Default Start Date (%(start_date)s) should be before or be the same as "
+"Default End Date (%(end_date)s) for sale order '%(name)s'."
+msgstr ""
+"La date de début par défaut (%(start_date)s) doit être antérieure ou "
+"identique à la date de fin par défaut (%(end_date)s) pour la commande client "
+"\"%(name)s\"."
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr "Date de fin"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+"Si cette option est activée, l'utilisateur devra saisir une date de début et "
+"une date de fin sur les lignes de facture comportant cet article."
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+"Date de fin manquante sur la ligne de commande ayant l'article '%s'."
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+"Date de début manquante sur la ligne de commande ayant l'article '%s'."
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start/End Dates"
+msgstr "Dates de début et de fin obligatoires"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr "Nombre de jours"
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid ""
+"On sale order line with product '%(product_name)s', the number of days is "
+"negative (%(number_of_days)s) ; this is not allowed. The number of days has "
+"been forced to 1."
+msgstr ""
+"Sur la ligne de commande ayant l'article '%(product_name)s', le nombre "
+"de jours est négatif (%(number_of_days)s) ; ceci n'est pas autorisé. Le "
+"nombre de jours a été forcé à 1."
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+msgid "Sales Order"
+msgstr "Bon de commande"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Ligne de bons de commande"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr "Date de début"
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid ""
+"Start Date (%(start_date)s) should be before or be the same as End Date "
+"(%(end_date)s) for sale order line with Product '%(product_name)s'."
+msgstr ""
+"La date de début (%(start_date)s) doit être antérieure ou identique à la "
+"date de fin (%(end_date)s) pour la ligne de commande client ayant l'article "
+"'%(product_name)s'."
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid "Wrong number of days"
+msgstr "Nombre de jours erroné"
diff --git a/sale_start_end_dates/i18n/hr.po b/sale_start_end_dates/i18n/hr.po
new file mode 100644
index 00000000000..9d11b76add4
--- /dev/null
+++ b/sale_start_end_dates/i18n/hr.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# Bole <bole@dajmi5.com>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: Bole <bole@dajmi5.com>, 2017\n"
+"Language-Team: Croatian (https://www.transifex.com/oca/teams/23907/hr/)\n"
+"Language: hr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
+"%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Prodajni nalog"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Stavka ponude"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/hr_HR.po b/sale_start_end_dates/i18n/hr_HR.po
new file mode 100644
index 00000000000..9ba1f5404ab
--- /dev/null
+++ b/sale_start_end_dates/i18n/hr_HR.po
@@ -0,0 +1,112 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Croatian (Croatia) (https://www.transifex.com/oca/teams/23907/"
+"hr_HR/)\n"
+"Language: hr_HR\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
+"%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Prodjani nalog"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/hu.po b/sale_start_end_dates/i18n/hu.po
new file mode 100644
index 00000000000..eafaa5f70aa
--- /dev/null
+++ b/sale_start_end_dates/i18n/hu.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Hungarian (https://www.transifex.com/oca/teams/23907/hu/)\n"
+"Language: hu\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Vevői megrendelés"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/it.po b/sale_start_end_dates/i18n/it.po
new file mode 100644
index 00000000000..82930e50440
--- /dev/null
+++ b/sale_start_end_dates/i18n/it.po
@@ -0,0 +1,123 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Italian (https://www.transifex.com/oca/teams/23907/it/)\n"
+"Language: it\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr "Default Data Fine"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr "Default Data Inizio"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, fuzzy, python-format
+#| msgid ""
+#| "Default Start Date should be before or be the same as Default End Date "
+#| "for sale order %s"
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+"La data di inizio deve essere inferiore o uguale alla data di fine per "
+"l'ordine %s."
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr "Data fine"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr "Manca la data di fine nell'ordine di vendita per il prodotto '%s'"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr "Manca la data di Inizio per il prodotto '%s'"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr "Necessario Data Inizio e Fine"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr "Numero di giorni"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Ordini vendita"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Linea d'ordine di vendita"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr "Data di inizio"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+"La data di inizio deve essere antecedente o uguale alla data di fine per il "
+"prodotto %s."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, fuzzy, python-format
+#| msgid "Number of Days"
+msgid "Wrong number of days"
+msgstr "Numero di giorni"
+
+#~ msgid "Missing number of days for sale order line with Product '%s'."
+#~ msgstr ""
+#~ "Mancano i numeri di giorni nell'ordine di vendita per il prodotto '%s'"
+
+#~ msgid ""
+#~ "On the sale order line with Product '%s', there are %d days between the "
+#~ "Start Date (%s) and the End Date (%s), but the number of days field has a "
+#~ "value of %d days."
+#~ msgstr ""
+#~ "L'ordine di vendita del prodotto '%s', ha un %d giorni tra la data di "
+#~ "inizio (%s) e quella di fine (%s), ma il campo \"numero di giorni\" ha un "
+#~ "valore di %d."
diff --git a/sale_start_end_dates/i18n/nl.po b/sale_start_end_dates/i18n/nl.po
new file mode 100644
index 00000000000..39fb2493ce2
--- /dev/null
+++ b/sale_start_end_dates/i18n/nl.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Dutch (https://www.transifex.com/oca/teams/23907/nl/)\n"
+"Language: nl\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Verkooporder"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/nl_NL.po b/sale_start_end_dates/i18n/nl_NL.po
new file mode 100644
index 00000000000..dfa1083caba
--- /dev/null
+++ b/sale_start_end_dates/i18n/nl_NL.po
@@ -0,0 +1,126 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# Peter Hageman <hageman.p@gmail.com>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-06-06 13:17+0000\n"
+"PO-Revision-Date: 2018-06-21 16:45+0000\n"
+"Last-Translator: Thomas Pot <t.pot@open2bizz.nl>\n"
+"Language-Team: Dutch (Netherlands) (https://www.transifex.com/oca/"
+"teams/23907/nl_NL/)\n"
+"Language: nl_NL\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"X-Generator: Weblate 3.0.1\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr "Standaard Einddatum"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr "Standaard Startdatum"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, fuzzy, python-format
+#| msgid ""
+#| "Default Start Date should be before or be the same as Default End Date "
+#| "for sale order %s"
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+"Standaard startdatum moet eerder of gelijk zijn als de standaard einddatum "
+"voor de verkooporder %s"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr "Einddatum"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+"Als deze optie actief is, moet de gebruiker een startdatum en een einddatum "
+"invoeren op de factuurregels die dit product bevatten."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr "Ontbrekende einddatum voor verkooporderregel met product '%s'."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr "Ontbrekende begindatum voor verkooporderregel met product '%s'."
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr "Moet begin- en einddatums hebben"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr "Aantal dagen"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Verkooporder"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Verkooporderregel"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr "Startdatum"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+"Startdatum moet vóór of gelijk zijn aan einddatum voor de verkooporderregel "
+"met Product '%s'."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, fuzzy, python-format
+#| msgid "Number of Days"
+msgid "Wrong number of days"
+msgstr "Aantal dagen"
+
+#~ msgid "Missing number of days for sale order line with Product '%s'."
+#~ msgstr "Ontbrekend aantal dagen voor verkooporderregel met product '%s'."
+
+#~ msgid ""
+#~ "On the sale order line with Product '%s', there are %d days between the "
+#~ "Start Date (%s) and the End Date (%s), but the number of days field has a "
+#~ "value of %d days."
+#~ msgstr ""
+#~ "Op de verkooporderregel met Product '%s' zijn er %d dagen tussen de "
+#~ "startdatum (%s) en de einddatum (%s), maar het veld aantal dagen heeft "
+#~ "een waarde van %d dagen."
diff --git a/sale_start_end_dates/i18n/pt.po b/sale_start_end_dates/i18n/pt.po
new file mode 100644
index 00000000000..39b7a1f7521
--- /dev/null
+++ b/sale_start_end_dates/i18n/pt.po
@@ -0,0 +1,109 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2020-03-23 14:13+0000\n"
+"Last-Translator: Pedro Castro Silva <pedrocs@exo.pt>\n"
+"Language-Team: Portuguese (https://www.transifex.com/oca/teams/23907/pt/)\n"
+"Language: pt\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Weblate 3.10\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+msgid "Sale Order"
+msgstr "Encomenda de Venda"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Linha de Encomenda de Venda"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr "Data de Início"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr "Número de dias errado"
diff --git a/sale_start_end_dates/i18n/pt_BR.po b/sale_start_end_dates/i18n/pt_BR.po
new file mode 100644
index 00000000000..f0320f980e2
--- /dev/null
+++ b/sale_start_end_dates/i18n/pt_BR.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Portuguese (Brazil) (https://www.transifex.com/oca/"
+"teams/23907/pt_BR/)\n"
+"Language: pt_BR\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Pedido de Venda"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Linha Pedido de Venda"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/ro.po b/sale_start_end_dates/i18n/ro.po
new file mode 100644
index 00000000000..b9711a2fd52
--- /dev/null
+++ b/sale_start_end_dates/i18n/ro.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Romanian (https://www.transifex.com/oca/teams/23907/ro/)\n"
+"Language: ro\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=3; plural=(n==1?0:(((n%100>19)||((n%100==0)&&(n!=0)))?"
+"2:1));\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Comandă vânzare"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Linie comandă vânzare"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/sale_start_end_dates.pot b/sale_start_end_dates/i18n/sale_start_end_dates.pot
new file mode 100644
index 00000000000..8d67bb1445c
--- /dev/null
+++ b/sale_start_end_dates/i18n/sale_start_end_dates.pot
@@ -0,0 +1,112 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* sale_start_end_dates
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2023-06-20 10:07+0000\n"
+"PO-Revision-Date: 2023-06-20 10:07+0000\n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid ""
+"Default Start Date (%(start_date)s) should be before or be the same as "
+"Default End Date (%(end_date)s) for sale order '%(name)s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start/End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid ""
+"On sale order line with product '%(product_name)s', the number of days is "
+"negative (%(number_of_days)s) ; this is not allowed. The number of days has "
+"been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+msgid "Sales Order"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid ""
+"Start Date (%(start_date)s) should be before or be the same as End Date "
+"(%(end_date)s) for sale order line with Product '%(product_name)s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#. odoo-python
+#: code:addons/sale_start_end_dates/models/sale_order.py:0
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/sk.po b/sale_start_end_dates/i18n/sk.po
new file mode 100644
index 00000000000..e8e9732ac87
--- /dev/null
+++ b/sale_start_end_dates/i18n/sk.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2018
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2018-01-27 03:53+0000\n"
+"PO-Revision-Date: 2018-01-27 03:53+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2018\n"
+"Language-Team: Slovak (https://www.transifex.com/oca/teams/23907/sk/)\n"
+"Language: sk\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Objednávka predaja"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/sl.po b/sale_start_end_dates/i18n/sl.po
new file mode 100644
index 00000000000..d46f741fa0b
--- /dev/null
+++ b/sale_start_end_dates/i18n/sl.po
@@ -0,0 +1,126 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Slovenian (https://www.transifex.com/oca/teams/23907/sl/)\n"
+"Language: sl\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=4; plural=(n%100==1 ? 0 : n%100==2 ? 1 : n%100==3 || n"
+"%100==4 ? 2 : 3);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr "Privzeti končni datum"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr "Privzeti začetni datum"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, fuzzy, python-format
+#| msgid ""
+#| "Default Start Date should be before or be the same as Default End Date "
+#| "for sale order %s"
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+"Privzeti začetni datum na prodajnem nalogu %s mora biti pred (ali enak) "
+"privzetim končnim datumom"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr "Končni datum"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+"Manjkajoči končni datum na postavki prodajnega naloga s proizvodom '%s'."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+"Manjkajoči začetni datum na postavki prodajnega naloga s proizvodom '%s'."
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr "Zahteva se začetni in končni datum"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr "Število dni"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Prodajni nalog"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Postavka prodajnega naloga"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr "Začetni datum"
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+"Začetni datum mora biti na postavki prodajnega naloga s proizvodom '%s' pred "
+"končnim datumom (ali enak)."
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, fuzzy, python-format
+#| msgid "Number of Days"
+msgid "Wrong number of days"
+msgstr "Število dni"
+
+#~ msgid "Missing number of days for sale order line with Product '%s'."
+#~ msgstr ""
+#~ "Manjkajoče število dni na postavki prodajnega naloga s proizvodom '%s'."
+
+#~ msgid ""
+#~ "On the sale order line with Product '%s', there are %d days between the "
+#~ "Start Date (%s) and the End Date (%s), but the number of days field has a "
+#~ "value of %d days."
+#~ msgstr ""
+#~ "Na postavki prodajnega naloga s proizvodom '%s' je %d dni med začetnim "
+#~ "datumom (%s) in končnim datumom (%s), a polje število dni ima vrednost %d "
+#~ "dni."
diff --git a/sale_start_end_dates/i18n/tr.po b/sale_start_end_dates/i18n/tr.po
new file mode 100644
index 00000000000..1f213c18b2f
--- /dev/null
+++ b/sale_start_end_dates/i18n/tr.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Turkish (https://www.transifex.com/oca/teams/23907/tr/)\n"
+"Language: tr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Sipariş Emri"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Satış Siparişi Hattı"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/tr_TR.po b/sale_start_end_dates/i18n/tr_TR.po
new file mode 100644
index 00000000000..b9abe4280b4
--- /dev/null
+++ b/sale_start_end_dates/i18n/tr_TR.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Turkish (Turkey) (https://www.transifex.com/oca/teams/23907/"
+"tr_TR/)\n"
+"Language: tr_TR\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Satış emri"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr "Sipariş emri satırı "
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/vi_VN.po b/sale_start_end_dates/i18n/vi_VN.po
new file mode 100644
index 00000000000..00e69d374f2
--- /dev/null
+++ b/sale_start_end_dates/i18n/vi_VN.po
@@ -0,0 +1,111 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+# OCA Transbot <transbot@odoo-community.org>, 2017
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2017-05-17 02:40+0000\n"
+"PO-Revision-Date: 2017-05-17 02:40+0000\n"
+"Last-Translator: OCA Transbot <transbot@odoo-community.org>, 2017\n"
+"Language-Team: Vietnamese (Viet Nam) (https://www.transifex.com/oca/"
+"teams/23907/vi_VN/)\n"
+"Language: vi_VN\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "Đơn hàng Bán"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/i18n/zh_CN.po b/sale_start_end_dates/i18n/zh_CN.po
new file mode 100644
index 00000000000..2305b09ca6d
--- /dev/null
+++ b/sale_start_end_dates/i18n/zh_CN.po
@@ -0,0 +1,110 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * sale_start_end_dates
+#
+# Translators:
+msgid ""
+msgstr ""
+"Project-Id-Version: sale-workflow (8.0)\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2015-09-09 12:27+0000\n"
+"PO-Revision-Date: 2015-09-03 07:11+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: Chinese (China) (http://www.transifex.com/oca/OCA-sale-"
+"workflow-8-0/language/zh_CN/)\n"
+"Language: zh_CN\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_end_date
+msgid "Default End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order__default_start_date
+msgid "Default Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:21
+#, python-format
+msgid ""
+"Default Start Date should be before or be the same as Default End Date for "
+"sale order '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__end_date
+msgid "End Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,help:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid ""
+"If this option is active, the user will have to enter a Start Date and an "
+"End Date on the invoice lines that have this product."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:86
+#, python-format
+msgid "Missing End Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:90
+#, python-format
+msgid "Missing Start Date for sale order line with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__must_have_dates
+msgid "Must Have Start and End Dates"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__number_of_days
+msgid "Number of Days"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:68
+#, python-format
+msgid ""
+"On sale order line with product '%s', the number of days is negative (%d) ; "
+"this is not allowed. The number of days has been forced to 1."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order
+#, fuzzy
+#| msgid "Sales Order"
+msgid "Sale Order"
+msgstr "销售订单"
+
+#. module: sale_start_end_dates
+#: model:ir.model,name:sale_start_end_dates.model_sale_order_line
+msgid "Sales Order Line"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: model:ir.model.fields,field_description:sale_start_end_dates.field_sale_order_line__start_date
+msgid "Start Date"
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:94
+#, python-format
+msgid ""
+"Start Date should be before or be the same as End Date for sale order line "
+"with Product '%s'."
+msgstr ""
+
+#. module: sale_start_end_dates
+#: code:addons/sale_start_end_dates/models/sale_order.py:67
+#, python-format
+msgid "Wrong number of days"
+msgstr ""
diff --git a/sale_start_end_dates/models/__init__.py b/sale_start_end_dates/models/__init__.py
new file mode 100644
index 00000000000..6aacb753131
--- /dev/null
+++ b/sale_start_end_dates/models/__init__.py
@@ -0,0 +1 @@
+from . import sale_order
diff --git a/sale_start_end_dates/models/sale_order.py b/sale_start_end_dates/models/sale_order.py
new file mode 100644
index 00000000000..172e412d81d
--- /dev/null
+++ b/sale_start_end_dates/models/sale_order.py
@@ -0,0 +1,185 @@
+# Copyright 2014-2021 Akretion (http://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# Copyright 2016-2021 Sodexis (http://sodexis.com)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from dateutil.relativedelta import relativedelta
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+from odoo.tools.misc import format_date
+
+
+class SaleOrder(models.Model):
+    _inherit = "sale.order"
+
+    default_start_date = fields.Date(
+        compute="_compute_default_start_date", readonly=False, store=True
+    )
+    default_end_date = fields.Date(
+        compute="_compute_default_end_date", readonly=False, store=True
+    )
+
+    @api.constrains("default_start_date", "default_end_date")
+    def _check_default_start_end_dates(self):
+        for order in self:
+            if (
+                order.default_start_date
+                and order.default_end_date
+                and order.default_start_date > order.default_end_date
+            ):
+                raise ValidationError(
+                    _(
+                        "Default Start Date (%(start_date)s) should be before or be the "
+                        "same as Default End Date (%(end_date)s) for sale order '%(name)s'."
+                    )
+                    % {
+                        "start_date": format_date(self.env, order.default_start_date),
+                        "end_date": format_date(self.env, order.default_end_date),
+                        "name": order.display_name,
+                    }
+                )
+
+    @api.depends("default_end_date")
+    def _compute_default_start_date(self):
+        for order in self:
+            if (
+                order.default_start_date
+                and order.default_end_date
+                and order.default_start_date > order.default_end_date
+            ):
+                order.default_start_date = order.default_end_date
+
+    @api.depends("default_start_date")
+    def _compute_default_end_date(self):
+        for order in self:
+            if (
+                order.default_start_date
+                and order.default_end_date
+                and order.default_start_date > order.default_end_date
+            ):
+                order.default_end_date = order.default_start_date
+
+
+class SaleOrderLine(models.Model):
+    _inherit = "sale.order.line"
+
+    start_date = fields.Date(
+        compute="_compute_start_date",
+        store=True,
+        states={"draft": [("readonly", False)], "sent": [("readonly", False)]},
+    )
+    end_date = fields.Date(
+        compute="_compute_end_date",
+        store=True,
+        states={"draft": [("readonly", False)], "sent": [("readonly", False)]},
+    )
+    number_of_days = fields.Integer(
+        compute="_compute_number_of_days",
+        inverse="_inverse_number_of_days",
+        readonly=False,
+        store=True,
+        string="Number of Days",
+    )
+    must_have_dates = fields.Boolean(related="product_id.must_have_dates")
+
+    @api.depends("start_date", "end_date")
+    def _compute_number_of_days(self):
+        for line in self:
+            days = False
+            if line.start_date and line.end_date:
+                days = (line.end_date - line.start_date).days + 1
+            line.number_of_days = days
+
+    @api.onchange("number_of_days")
+    def _inverse_number_of_days(self):
+        res = {"warning": {}}
+        for line in self:
+            if line.number_of_days < 0:
+                res["warning"]["title"] = _("Wrong number of days")
+                res["warning"]["message"] = _(
+                    "On sale order line with product '%(product_name)s', the "
+                    "number of days is negative (%(number_of_days)s) ; this is not "
+                    "allowed. The number of days has been forced to 1."
+                ) % {
+                    "product_name": line.product_id.display_name,
+                    "number_of_days": line.number_of_days,
+                }
+                line.number_of_days = 1
+            if line.start_date:
+                line.end_date = line.start_date + relativedelta(
+                    days=line.number_of_days - 1
+                )
+            elif line.end_date:
+                line.start_date = line.end_date - relativedelta(
+                    days=line.number_of_days - 1
+                )
+        return res
+
+    @api.constrains("product_id", "start_date", "end_date")
+    def _check_start_end_dates(self):
+        for line in self:
+            if line.product_id.must_have_dates:
+                if not line.end_date:
+                    raise ValidationError(
+                        _("Missing End Date for sale order line with " "Product '%s'.")
+                        % (line.product_id.display_name)
+                    )
+                if not line.start_date:
+                    raise ValidationError(
+                        _(
+                            "Missing Start Date for sale order line with "
+                            "Product '%s'."
+                        )
+                        % (line.product_id.display_name)
+                    )
+                if line.start_date > line.end_date:
+                    raise ValidationError(
+                        _(
+                            "Start Date (%(start_date)s) should be before or "
+                            "be the same as End Date (%(end_date)s) for sale order line "
+                            "with Product '%(product_name)s'."
+                        )
+                        % {
+                            "start_date": format_date(self.env, line.start_date),
+                            "end_date": format_date(self.env, line.end_date),
+                            "product_name": line.product_id.display_name,
+                        }
+                    )
+
+    def _prepare_invoice_line(self, **optional_values):
+        self.ensure_one()
+        res = super()._prepare_invoice_line(**optional_values)
+        if not self.display_type and self.must_have_dates:
+            res.update({"start_date": self.start_date, "end_date": self.end_date})
+        return res
+
+    @api.depends("end_date", "product_id")
+    def _compute_start_date(self):
+        for line in self:
+            order = line.order_id
+            if (
+                not line.start_date
+                and line.product_id.must_have_dates
+                and order.default_start_date
+            ):
+                line.start_date = order.default_start_date
+            elif line.start_date and not line.product_id.must_have_dates:
+                line.start_date = False
+            elif line.end_date and line.start_date and line.start_date > line.end_date:
+                line.start_date = line.end_date
+
+    @api.depends("start_date", "product_id")
+    def _compute_end_date(self):
+        for line in self:
+            order = line.order_id
+            if (
+                not line.end_date
+                and line.product_id.must_have_dates
+                and order.default_end_date
+            ):
+                line.end_date = order.default_end_date
+            elif line.end_date and not line.product_id.must_have_dates:
+                line.end_date = False
+            elif line.end_date and line.start_date and line.start_date > line.end_date:
+                line.end_date = line.start_date
diff --git a/sale_start_end_dates/readme/CONTRIBUTORS.rst b/sale_start_end_dates/readme/CONTRIBUTORS.rst
new file mode 100644
index 00000000000..d92b2de86c1
--- /dev/null
+++ b/sale_start_end_dates/readme/CONTRIBUTORS.rst
@@ -0,0 +1,3 @@
+* Alexis de Lattre <alexis.delattre@akretion.com>
+* Sodexis <dev@sodexis.com>
+* Serpent Consulting Services Pvt. Ltd. <support@serpentcs.com>
diff --git a/sale_start_end_dates/readme/DESCRIPTION.rst b/sale_start_end_dates/readme/DESCRIPTION.rst
new file mode 100644
index 00000000000..4d3a889ae0e
--- /dev/null
+++ b/sale_start_end_dates/readme/DESCRIPTION.rst
@@ -0,0 +1,10 @@
+This module adds the fields *Start Date* and *End Date* on sale order
+lines (requied fields when the product has the *Must Have Start and
+End Dates* property). You can also define a *Default Start Date* and
+*Default End Date* on the sale order; when set, these dates will be used
+by default on new sale order lines. Upon invoice creation, the values of
+the start/end dates of the sale order line are copied to the start/end
+dates of invoice lines.
+
+This module is a technical module: it is designed to be used with other
+modules such as the *sale_rental* module.
diff --git a/sale_start_end_dates/static/description/icon.png b/sale_start_end_dates/static/description/icon.png
new file mode 100644
index 00000000000..3a0328b516c
Binary files /dev/null and b/sale_start_end_dates/static/description/icon.png differ
diff --git a/sale_start_end_dates/static/description/index.html b/sale_start_end_dates/static/description/index.html
new file mode 100644
index 00000000000..5764b464fee
--- /dev/null
+++ b/sale_start_end_dates/static/description/index.html
@@ -0,0 +1,432 @@
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+<title>Sale Start End Dates</title>
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+<body>
+<div class="document" id="sale-start-end-dates">
+<h1 class="title">Sale Start End Dates</h1>
+
+<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! This file is generated by oca-gen-addon-readme !!
+!! changes will be overwritten.                   !!
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
+<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/sale-workflow/tree/15.0/sale_start_end_dates"><img alt="OCA/sale-workflow" src="https://img.shields.io/badge/github-OCA%2Fsale--workflow-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/sale-workflow-15-0/sale-workflow-15-0-sale_start_end_dates"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/167/15.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
+<p>This module adds the fields <em>Start Date</em> and <em>End Date</em> on sale order
+lines (requied fields when the product has the <em>Must Have Start and
+End Dates</em> property). You can also define a <em>Default Start Date</em> and
+<em>Default End Date</em> on the sale order; when set, these dates will be used
+by default on new sale order lines. Upon invoice creation, the values of
+the start/end dates of the sale order line are copied to the start/end
+dates of invoice lines.</p>
+<p>This module is a technical module: it is designed to be used with other
+modules such as the <em>sale_rental</em> module.</p>
+<p><strong>Table of contents</strong></p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#bug-tracker" id="id1">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="id2">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="id3">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="id4">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="id5">Maintainers</a></li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="bug-tracker">
+<h1><a class="toc-backref" href="#id1">Bug Tracker</a></h1>
+<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/sale-workflow/issues">GitHub Issues</a>.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+<a class="reference external" href="https://github.com/OCA/sale-workflow/issues/new?body=module:%20sale_start_end_dates%0Aversion:%2015.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<p>Do not contact contributors directly about support or help with technical issues.</p>
+</div>
+<div class="section" id="credits">
+<h1><a class="toc-backref" href="#id2">Credits</a></h1>
+<div class="section" id="authors">
+<h2><a class="toc-backref" href="#id3">Authors</a></h2>
+<ul class="simple">
+<li>Akretion</li>
+<li>Sodexis</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h2><a class="toc-backref" href="#id4">Contributors</a></h2>
+<ul class="simple">
+<li>Alexis de Lattre &lt;<a class="reference external" href="mailto:alexis.delattre&#64;akretion.com">alexis.delattre&#64;akretion.com</a>&gt;</li>
+<li>Sodexis &lt;<a class="reference external" href="mailto:dev&#64;sodexis.com">dev&#64;sodexis.com</a>&gt;</li>
+<li>Serpent Consulting Services Pvt. Ltd. &lt;<a class="reference external" href="mailto:support&#64;serpentcs.com">support&#64;serpentcs.com</a>&gt;</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h2><a class="toc-backref" href="#id5">Maintainers</a></h2>
+<p>This module is maintained by the OCA.</p>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
+<p>OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.</p>
+<p>Current <a class="reference external" href="https://odoo-community.org/page/maintainer-role">maintainer</a>:</p>
+<p><a class="reference external" href="https://github.com/alexis-via"><img alt="alexis-via" src="https://github.com/alexis-via.png?size=40px" /></a></p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/sale-workflow/tree/15.0/sale_start_end_dates">OCA/sale-workflow</a> project on GitHub.</p>
+<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/sale_start_end_dates/tests/__init__.py b/sale_start_end_dates/tests/__init__.py
new file mode 100644
index 00000000000..7c008128f36
--- /dev/null
+++ b/sale_start_end_dates/tests/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (C) 2018 Serpent Consulting Services Pvt. Ltd.
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import test_sale_start_end_dates
diff --git a/sale_start_end_dates/tests/test_sale_start_end_dates.py b/sale_start_end_dates/tests/test_sale_start_end_dates.py
new file mode 100644
index 00000000000..7e929ee0079
--- /dev/null
+++ b/sale_start_end_dates/tests/test_sale_start_end_dates.py
@@ -0,0 +1,94 @@
+# Copyright (C) 2018 Serpent Consulting Services Pvt. Ltd.
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+import datetime
+
+from odoo.exceptions import ValidationError
+from odoo.tests.common import TransactionCase
+
+
+class TestSaleStartEndDates(TransactionCase):
+    def setUp(self):
+        super().setUp()
+        self.partner = self.env.ref("base.res_partner_3")
+        self.product_id = self.env.ref(
+            "account_invoice_start_end_dates.product_insurance_contract_demo"
+        )
+        self.assertTrue(self.product_id.must_have_dates)
+        self.product_no_dates = self.env.ref("product.product_product_7")
+        self.assertFalse(self.product_no_dates.must_have_dates)
+        self.default_start_date = datetime.datetime.now()
+        self.default_end_date = self.default_start_date + datetime.timedelta(days=9)
+        self.so = self.env["sale.order"].create(
+            {
+                "partner_id": self.partner.id,
+                "partner_invoice_id": self.partner.id,
+                "partner_shipping_id": self.partner.id,
+                "default_start_date": self.default_start_date,
+                "default_end_date": self.default_end_date,
+                "pricelist_id": self.env.ref("product.list0").id,
+            }
+        )
+        self.order_line = self.env["sale.order.line"].create(
+            {
+                "order_id": self.so.id,
+                "name": self.product_id.display_name,
+                "product_id": self.product_id.id,
+                "product_uom_qty": 2,
+                "product_uom": self.product_id.uom_id.id,
+                "price_unit": self.product_id.list_price,
+                "start_date": self.default_start_date,
+                "end_date": self.default_end_date,
+            }
+        )
+        self.so.action_confirm()
+
+    def test_default_start_end_date_constraint(self):
+        with self.assertRaises(ValidationError):
+            self.so.write(
+                {
+                    "default_start_date": self.default_end_date,
+                    "default_end_date": self.default_start_date,
+                }
+            )
+
+    def test_compute_start_end_date(self):
+        new_line = self.env["sale.order.line"].create(
+            {
+                "product_id": self.product_id.id,
+                "name": self.product_id.display_name,
+                "product_uom_qty": 2,
+                "product_uom": self.product_id.uom_id.id,
+                "order_id": self.so.id,
+            }
+        )
+        self.assertEqual(new_line.start_date, self.so.default_start_date)
+        self.assertEqual(new_line.end_date, self.so.default_end_date)
+
+    def test_compute_product_no_dates(self):
+        new_line = self.env["sale.order.line"].create(
+            {
+                "product_id": self.product_no_dates.id,
+                "name": self.product_no_dates.display_name,
+                "product_uom_qty": 2,
+                "product_uom": self.product_no_dates.uom_id.id,
+                "order_id": self.so.id,
+            }
+        )
+        self.assertFalse(new_line.start_date)
+        self.assertFalse(new_line.end_date)
+
+    def test_compute_number_of_days(self):
+        self.assertEqual(self.order_line.number_of_days, 10)
+
+    def test_inverse_number_of_days(self):
+        self.order_line.number_of_days = 1
+        self.assertEqual(self.order_line.start_date, self.order_line.end_date)
+        self.order_line.number_of_days = -1
+        self.assertEqual(self.order_line.number_of_days, 1)
+
+    def test_prepare_invoice_line(self):
+        invoice_line_vals = self.order_line._prepare_invoice_line()
+        self.assertEqual(invoice_line_vals["product_id"], self.product_id.id)
+        self.assertEqual(invoice_line_vals["start_date"], self.order_line.start_date)
+        self.assertEqual(invoice_line_vals["end_date"], self.order_line.end_date)
diff --git a/sale_start_end_dates/views/sale_order.xml b/sale_start_end_dates/views/sale_order.xml
new file mode 100644
index 00000000000..36e9c3b25f3
--- /dev/null
+++ b/sale_start_end_dates/views/sale_order.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!--
+  Copyright 2014-2021 Akretion France (http://www.akretion.com/)
+  @author Alexis de Lattre <alexis.delattre@akretion.com>
+  Copyright 2016-2021 Sodexis
+  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+-->
+<odoo>
+    <record id="view_order_form" model="ir.ui.view">
+        <field name="name">start.end.dates.view_order_form</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form" />
+        <field name="arch" type="xml">
+            <xpath
+                expr="//field[@name='order_line']/form//field[@name='product_id']"
+                position="after"
+            >
+                <field
+                    name="start_date"
+                    attrs="{'invisible': [('must_have_dates', '=', False)], 'required': [('must_have_dates', '=', True)]}"
+                />
+                <field
+                    name="end_date"
+                    attrs="{'invisible': [('must_have_dates', '=', False)], 'required': [('must_have_dates', '=', True)]}"
+                />
+                <field
+                    name="number_of_days"
+                    attrs="{'invisible': [('must_have_dates', '=', False)], 'required': [('must_have_dates', '=', True)]}"
+                />
+                <field name="must_have_dates" invisible="1" />
+            </xpath>
+            <xpath
+                expr="//field[@name='order_line']/tree/field[@name='name']"
+                position="after"
+            >
+                <field
+                    name="start_date"
+                    attrs="{'required': [('must_have_dates', '=', True)]}"
+                    optional="show"
+                />
+                <field
+                    name="end_date"
+                    attrs="{'required': [('must_have_dates', '=', True)]}"
+                    optional="show"
+                />
+                <field name="number_of_days" optional="hide" />
+                <field name="must_have_dates" invisible="1" />
+            </xpath>
+            <field name="payment_term_id" position="after">
+                <field name="default_start_date" />
+                <field name="default_end_date" />
+            </field>
+        </field>
+    </record>
+</odoo>
diff --git a/setup/sale_start_end_dates/odoo/addons/sale_start_end_dates b/setup/sale_start_end_dates/odoo/addons/sale_start_end_dates
new file mode 120000
index 00000000000..363bb696fd4
--- /dev/null
+++ b/setup/sale_start_end_dates/odoo/addons/sale_start_end_dates
@@ -0,0 +1 @@
+../../../../sale_start_end_dates
\ No newline at end of file
diff --git a/setup/sale_start_end_dates/setup.py b/setup/sale_start_end_dates/setup.py
new file mode 100644
index 00000000000..28c57bb6403
--- /dev/null
+++ b/setup/sale_start_end_dates/setup.py
@@ -0,0 +1,6 @@
+import setuptools
+
+setuptools.setup(
+    setup_requires=['setuptools-odoo'],
+    odoo_addon=True,
+)