Magento 2.3 Stamps.com Integration issues with post-back tracking

Question

A Magento 2.3 site is experiencing problems with the Stamps.com API module integration. The specific recent issue is that the post-back data does not seem to function. The merchant is expecting to see an order that was "processing" automatically "complete" when they complete the shipping process on Stamps.com software side. They also expect tracking data for that shipment to appear on the Magento order automatically. That is not occuring.

Overview of situation:

• Site is Magento 2.3.4 version
• Merchant admin/shipping manager is using the Software from Stamps on their end
• Stamps.com provided some less than ideal documentation, but some. They provided the Module for the API which is properly installed to the site. So we are using the module provided directly by them without alteration.
• The module is successfully connected between Magento site and Stamps.com and recognizing the orders being imported to the Stamps account.
• When the shipping admin completes the shipment of the order on their end, nothing happens to auto-update the order status or post tracking info to the order inside Magento.
• Shipping admin claims it did work with their previous Magento 1 site (although Magento 1 was a different program).

Here is the official instructions provided by Stamps related to the software method (click on Software tab): https://stamps.custhelp.com/app/answers/detail/a_id/1213/kw/post%20back

I shared these instructions with the shipping admin, and asked them to make sure they were following the recommended settings on their software end. Unfortunately that software is beyond our control or visual, and I have not yet received any actual error details from them or Stamps other than "it does not do anything".

We also reviewed the actual code in the Magento module provided by Stamps.com, and didn't notice anything obvious to indicate a post-back or tracking data feature. There are no specific errors present in the error log on the Magento site.

Is anyone familiar with this module or similar challenges with Stamps and Magento 2 integration? I have attempted to contact Stamps support without any response so far.

Answer 1

I know this is an old post, but thought I'd put my solution here just in case someone else is trying to get this integration working. I was able to successfully connect Stamps.com to Magento 2.4.  There were two tricks to get it to work.

1. There is one drop down "Invoice after shipping" that does not show on the connection screen in Stamps.com due to some incorrect css.   Correcting the css in the browser to remove the fixed display property for the element allowed me to select this option and ability to try to connect. On the .storeConnect .action-row class rules remove the fixed position styling.

2. Install the Shipstation extension, not the one provided by Stamps.com - https://github.com/shipstation/plugin-magento.

After making these two changes, I was able to connect to Magento and when printing labels it sends the tracking information and creates a shipment to complete the order in Magento.