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Authenticaion Errors


A failure in the Authentication process will give an HTTP 401 Unauthorized message. There are three possible reasons for this error:

  • Invalid Application Key. Check your Application Key in the Client Portal and/or generate a new Application Key.
  • Invalid Request Signature. Double check your Shared Secret and ensure your query is sorted alphabetically.
  • Not Allowed. You could be using the wrong API URL (check with your provider for the proper URL for API requests).

Responses will include an X-Application-Error-Description header for a more precise error description. An Authentication Challenge Header with the Authentication Algorithm (such as WWW-Authenticate: PNCP) used will also be included.