[BUG] PostNL shippingmethods custom not working when create shipment in backend

[JoostWan]

To Reproduce
Steps to reproduce the behavior:

1. Set a custom shipping method in the backend option Path: tig_postnl/extra_settings_advanced/allowed_shipping_methods
2. Place a backend order with the selected custom shipping method.
3. Create a shipment for the placed order with the custom shipping method.

Now there are no PostNL options available.

In this file is there a check that returns false
https://github.com/postnl/postnl-magento2/blob/master/view/adminhtml/templates/shipment/create/options.phtml#L6

This function is checked from the options.phtml and returns false
https://github.com/postnl/postnl-magento2/blob/master/Block/Adminhtml/Shipment/OptionsAbstract.php#L92

When you change this for testing to return true the shipping options are visible. But on the next page where you can download the labels there is again a check on shipping method. https://github.com/postnl/postnl-magento2/blob/master/Block/Adminhtml/Shipment/View.php#L62

• Magento version: 2.4.6
• PHP version: 8.2
• TIG PostNL version: 1.14.0

[JorisPostNL]

Hi @JoostWan,

Thank you for bringing this to our attention! The issue in question is caused by an incompatibility between our plug-in and shipping methods which are not shipping method "PostNL". For this reason we included Flat, Table and Matrix rates in our shipping method, so there would likely be no need for other methods.
This leads us to the question what the purpose of your custom shipping method is exactly, could you provide us with some context in this regard? Perhaps there are better/quicker changes we can develop than this which would achieve the same goal. Could you advise why a custom shipping method is preferred in your case?

Kind regards
Joris

[JoostWan]

Hi @JorisPostNL

A custom shipping method has been created so that the customer can create an order via the backend with free shipping costs. As far as I know, this is not possible with table rates, where you can specifically indicate this for an order via the backend. Via the frontend, however, it must be a certain amount.

[JorisPostNL]

Hi @JoostWan

Thank you for elaborating on the issue. I have tested it and agree that this could be a useful change to our plug-in. We will discuss this further internally to decide if and when we will place this on our roadmap. Thanks again for providing valuable feedback and suggestions!

Kind regards
Joris