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AMZScratchpad

AccessDenied (PA-API 5.0): Amazon Creators API error

HTTP 403PA-API 5.0 (deprecated)Documented by Amazon

What it means

Your code still calls the Product Advertising API 5.0, which Amazon shut down on May 15, 2026.

Message returned by the API: Product Advertising API is deprecated. Please migrate to Creators API using the migration guide …

Typical causes

  • Requests still go to webservices.amazon.*/paapi5/… with AWS Signature v4.

How to fix it

  1. Register for the Creators API and create new credentials. PA-API keys do not work.
  2. Switch to OAuth 2.0 tokens and https://creatorsapi.amazon/catalog/v1/….
  3. Rename all parameters to lowerCamelCase and replace Offers with offersV2.
  4. See the migration guide on this site.

Not sure which part fails? Run Test credentials in the Scratchpad. It checks the token, the API access and the partner tag separately.

Example response

{
  "__type": "com.amazon.paapi5#AccessDeniedException",
  "Errors": [
    {
      "Code": "AccessDenied",
      "Message": "Product Advertising API is deprecated. Please migrate to Creators API using the migration guide at https://affiliate-program.amazon.com/creatorsapi/docs/en-us/migrating-to-creatorsapi-from-paapi."
    }
  ]
}