Notarize APIs will respond with standard HTTP error codes should you make a bad request. 400 and 422 errors will have more specific messaging depending on the API and endpoint used.
HTTP Status Code
Summary
200 - SUCCESS
Successful API request.
400 - BAD REQUEST
Bad request or invalid parameters.
401 - NOT AUTHENTICATED
Not authenticated.
403 - NOT AUTHORIZED
No access to this specific feature.
404 - NOT FOUND
The requested item does not exist.
422 - BAD REQUEST
Violated business rule.
500 - SERVER ERROR
Unknown error. Retry the call.
If you'd like more help deciphering errors and error codes from the Notarize API, please contact Support.