If you encounter a problem connecting to the Amazon API, refer to this list of error code messages and solutions.

Error Code: AccessDenied or AccessDeniedAwsUsers #

This error usually occurs when the access key provided is not registered with Product Advertising API or the credentials being used are AWS credentials.

Solution

To solve this error, visit the Amazon associates central and easily create API keys using our guide.

Error Code: InvalidAssociate #

This error occurs when the access key is not mapped to the primary of any approved associate store.

Solution

To solve this, you must visit your Amazon associates central for the requested marketplace to ensure the API keys come from your account.

Error Code: IncompleteSignature #

This error occurs when all the components of the signature are not provided with the request or do not include all of the required elements.

Solution

Make sure the authorization header includes the correct credential key and the request date.

Error Code: InvalidPartnerTag #

This error occurs when the partner tag value is invalid or not in the request.

Solution

To solve this, visit the associate central for the requested marketplace or network to ensure the tracking ID is correct.

Error Code: InvalidSignature #

This error occurs when some component of the signature is not valid. 

Solution

To solve this, check your credentials to ensure it is correct before submitting again.

Error Code: TooManyRequests #

This error occurs If the requests at which Product Advertising API 5.0 is being hit are too high. The request is usually denied due to request throttling.

Solution

To solve this, verify the number of requests made per second to the Amazon Product Advertising API.

Error Code: RequestExpired #

This error occurs because each request is signed with a signature. The signed requests are valid for 15 minutes. After that, the requests expire and new signatures are supposed to be generated before requesting again.

Error Code: InvalidParameterValue or MissingParameter #

This error occurs when any of the input parameters relating to the request are invalid or missing. 

Error Code: UnknownOperation #

This error occurs if the operation requested is not valid.

Solution

To solve this, verify if the operation name is typed correctly.

Error Code: UnrecognizedClient #

This error occurs when a client is not authorized to request Product Advertising API.

Solution

Ensure you meet the Product Advertising API requirements before requesting credentials.