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Starting January 31, 2026 addon requires Seller Central PRO plan, Private Developer account, IAM Access Keys (AWS).
IMPORTANT!
Amazon seller account should have Professional plan to get API access. See plans and pricing comparison at: https://sell.amazon.com/pricing
Only a Primary User of the Amazon seller account can grant access to the Amazon Integration addon.
How to Find Seller Central ID?
How to Find Seller Central ID?
You can find your Amazon Seller ID (Merchant ID) directly in Seller Central.
1. Login OR register at Amazon Seller Central: https://sellercentral.amazon.com
Important: Amazon seller account should have Professional plan to get API access.
Important: Only a Primary User of the Amazon seller account can grant access to the Amazon Integration addon.
2. Go to Settings ( ⋮ ) for new interface / Gear menu (top right) for old interface
3. Select Account Info / Account settings
4. Open Business Information
5. Your Merchant Token / Seller ID will be displayed there:
https://sellercentral.amazon.com/gp/on-board/configuration/single-section/merchant-token.html
Copy it with the Copy button.
Warning! You cannot share a merchant token with other sellers or use it for different seller accounts. It is unique to given seller.
Note: The account on the screenshot is a "dummy" data. Do not use it for your application.
6. Specify your Merchant Token account in Amazon Integration addon: Merchant Token field
Note: It is a good idea to save all configuration settings in secure place (like password manager if you use any).
You are all set. Now you can go to Developer account and create an app >>
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