The following table describes the SSO token-operation error codes.

Error Code Description
internal_error An internal error occurred while creating or signing a ClientPrincipal at user authentication time, no SSO token was produced
expired_token The client submitted token was expired and access to the web application was denied
rejected_token The token value was rejected
invalid_client The token request was issued from an invalid client type
invalid_token The client submitted SSO token failed validation and access to the web application was denied
corrupt_token The token submitted to an SSO token was corrupt (could not validate seal) and access to the web application was denied
invalid_request The request containing information about the SSO Token was incorrect/incomplete, and access to the web application was denied
unsupported_token The request contained an unsupported token type and access to the web application was denied