Errors

When your computer says no, it's helpful to know how to make it say yes. Below is a summary of error codes and corresponding HTTP status codes for the OAuth 2.0 flow.

Error Code Description
invalid_request
400
The request is malformed, a parameter has an invalid value or is missing.
invalid_client
401
Client authentication failed.
unauthorized_client
400
Client is not authorized to use the grant.
unsupported_grant_type
400
Authorization grant is not supported by the Authorization Server.
invalid_scope
400
The scope is malformed or invalid.