InvalidParameterValue: Amazon Creators API error

HTTP 200 (partial)Partial errors (HTTP 200)Documented by Amazon

What it means

Some of the requested IDs are invalid. You still get the data for the valid ones.

Typical causes

• A malformed or unknown ASIN in a multi-ID request.

How to fix it

1. Process itemsResult.items as usual.
2. Log the IDs from errors[].message and remove or replace them.
3. Never assume the response order matches your itemIds. Match by asin.

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

{
  "errors": [
    {
      "code": "InvalidParameterValue",
      "message": "The ItemIds B08N5WRWNW provided in the request is invalid."
    }
  ],
  "itemsResult": {
    "items": [
      "…"
    ]
  }
}

Related errors

• ItemNotFound: One of the requested products was not found. You still get the others.
• ResourceNotFoundException: Your credentials worked, but none of the requested products, categories or search results exist in this marketplace.