There are two methods to check if an item is restricted:
Method 1: Tap on “Amazon Icon” on Main Screen
Tap the Amazon Icon located on the bottom right-hand side of the main screen. You will be directed to your Amazon Seller page to list the item. If you receive a warning saying you need approval, you are currently restricted from selling this item. (Click on image for full size).
Method 2: Use the Amazon Seller App
Install the Amazon Seller app and log in the Amazon Seller app with your Amazon account. After you tap on “Add a Product.”, you can either scan or enter the item number to see if you are restricted. (Click on image for full size).