If you have any policy violations, you can learn more about them by visiting the Account Health page. It will help you to understand how your business is performing against the performance targets and policies that you must adhere to, in order to sell on Amazon. The Account Health page provides you with an overview of your seller account’s adherence to the performance targets and policies required to sell on Amazon. To ensure that we are delivering a great experience for our customers, Amazon can take action on these metrics if they don’t comply with our targets.
To learn how you can address account deactivation & listing level violations, watch this Seller University video.