Please note this is a channel-specific article only applicable to Amazon.
Amazon Inventory Sync is returning the error message:
Start sync Error: Amazon SubmitInventoryChange: Feed Rejected
a) The API authorization for Linnworks has expired.
b) Amazon is rejecting the feed before even looking at it. This suggests that Amazon has put some sort of restriction or limitation on the account.
a) Go to Settings -> Channel Integrations -> Amazon -> Edit channel details -> Test. If the popup displays the following error:
Access to Reports.GetReportRequestList is denied then follow this solution article to resolve the matter.
If the channel test is successful, see solution b.
b) Contact Amazon to confirm there are no restrictions on the account.
If the account is suspended or has a restriction, you need to switch off the inventory sync for the specific channel so that it will not interfere with the other integrated Amazon accounts.
If there are no restrictions, then further investigation is required by the Linnworks team to confirm - please contact our technical support team.