Handle order results in broken tracking mail

[evs-xsarus]

To Reproduce
Steps to reproduce the behavior:

1. Place an order
2. Open the admin
3. Go to Sales > Order
4. View the order
5. Click on button 'Handle'

Expected result
A tracking URL added to the order and a packing slip downloaded.

Actual result
A broken page showing part of the track.phtml:

Verzonden door	Tracking-nummer
PostNL:

The tracking URL is added to the order though.

Workaround
Changing the templato to not load the tracking url

Debugging
Error:

Call to a member function getUrl() on null in vendor/magento/module-sales/view/frontend/templates/email/shipment/track.phtml:28

This template is defined in

vendor/magento/module-sales/view/frontend/layout/sales_email_order_shipment_track.xml

In this XML, argument 'tracking_url' is added, but this is a frontend XML. Thus, said argument isn't available in the admin.

Running

• Magento version: 2.3.5-p2
• PHP version: 7.3
• TIG PostNL version: 1.9.4.1

[tig-jaspersmits]

Hi @evs-xsarus ,

Thanks for informing us about this. I want to try and reproduce the problem so we can take the necesary steps to fix this.
You are talking about the button "Handle". What kind of button is this? I don't have that button when I view the order. Could you maybe share a screenshot?

Kind regards,
Jasper
TIG

[evs-xsarus]

@tig-jaspersmits thank you for replying. Your comment made me think and look through the code. Turns out to be a custome piece of code in the admin in which we:

• create shipments
  ** this will generate the tracking URL
• notify customers by mail
  ** this breaks.

Seeing this, I must fix it myself :). Ticket closed.

[evs-xsarus]

Turned out to be changed mail templates by Magento: magento/magento2#25221 (comment)

[tig-jaspersmits]

Hi @evs-xsarus ,

Thanks for letting me know. Good to hear you found the solution!

Kind regards,
Jasper
TIG