If you see the below error in your the Alerts & Comments section of your FBA multi-channel fulfillment order when looking in the Needs Attention status, you will need to follow the below instructions to re-authorize the ZentailCommerce MWS application in your Seller Central portal.
In Seller Central...
- Click Settings on the top right of the page.
- Click User Permissions on the dropdown menu.
- Scroll down to the Amazon MWS Developer Permissions section.
- Re-authorize the ZentailCommerce application.