Email support@shiptronix.com. We reply within one business day, Monday to Friday, 9am to 5pm US Eastern. Support is offered in English.
Open the Selling Partner Appstore listing, choose Authorize, and follow Amazon's consent screen. If the connection does not complete, the most common cause is starting the flow while signed in to a different Seller Central account than the one you meant to connect.
In Seller Central, go to Apps and Services, then Manage Your Apps, and choose Revoke for this application. Access stops immediately. Email us and we will delete the stored authorization and any cached data for your account.
Include your merchant token and the approximate time the problem occurred. Do not send passwords or API keys.