How to remove channel permissions from previous applications when switching to Marketplace Management
Disabling 3rd party applications
Sellers can manage 3rd party access to their Amazon account from the Apps & Services Section in Amazon Seller Central.
To remove any access from a 3rd party app on your Amazon account navigate to Apps & Services -> Manage Your Apps -> Disable
We recommend disabling permissions for a 3rd party app when switching to Marketplace Management if the previous service had similar functionality to Marketplace Management.
For security purposes, your Amazon token for Apps & Services will expire every 12 months. This helps sellers keep up to date with the third-party services, like Marketplace Management, that should have access to their accounts and remove the services that no longer should.
When your permissions expire for Marketplace Management you will get a notification in your Marketplace Management dashboard as well as an email for Amazon Seller Central. Simply repeat the steps by navigating to Apps & Services -> Manage Your Apps -> Enable