Setting--Amazon Authorized Error : Authorization Failed.

Step 1: Make Sure the Amazon Region if US Or EUR Site；

Now that 4Seller only support US Site and EUR Site, if not, it will show the error Information;

Step 2: Check the Stores Status if normal
This error will be reported when the store status is abnormal, such as the store has not been renewed, the store violates the policy, etc. At this time, Amazon will return an exception of insufficient permissions when authorizing. Pls can check the store site and status to confirm whether the store has just been registered, whether the store status is still under review, and whether the review has passed.

Step 3: If everything is normal, it is the interface problem, pls try  again later.