Unable to confirm shipment for order XXXX: Maximum items of type %type is %max
Overview
This article will help your solve the "Unable to confirm shipment for order XXXX: Maximum items of type %type is %max" issue:
This error prevents myFulfillment from confirming shipments to your CMS. This comes from the number of item in one order being too much for your server.
This is mainly an issue with Magento integrations
How to solve
Here is where to find all the details to fix this issue: https://support.magento.com/hc/en-us/articles/4406893342093-Web-API-unable-to-process-requests-with-more-than-20-items-in-array
You will need to apply a patch to your CMS server:
Once the patch is applied, go back to the synchronization errors page and "retry" your shipment's confirmation