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Connect an Amazon account (Amazon.com.tr)
Knowledgebase
Marketplace → Add account → Amazon. From Amazon Seller Central / SP-API take the client id, secret and refresh token. Pick the Turkey marketplace ID—do not paste an EU account onto TR. Do not create listings before the auth test passes. Barcode (EAN/UPC), brand registry and category are required. Without marketplace.amazon.max the menu will not add an account. Re-authorize when the token expires; 403 is often a scope or marketplace-id mistake.