you will need to follow these steps:
Log in to your Amazon Brand Registry account.
Click on the “Trademarks” tab.
Click on the “Add Trademark” button.
Enter the details of your new trademark, including the trademark text, the trademark registration number, and the country where the trademark is registered.
Upload a copy of your trademark registration certificate as proof of ownership.
Click on the “Submit” button to add the new trademark to your Brand Registry account.