OAuth Error


OAuth Error is an Result Code indicating something went wrong.

If an OAuth 2.0 request fails due to a missing, invalid, or mismatching redirect_uri, or if the OAuth Client identifier is missing or invalid, the Authorization Server SHOULD inform the Resource Owner of the error and MUST NOT automatically redirect the user-agent to the invalid Redirect URI.

OAuth Extensions Error Registration#

OAuth Error should be registered in the OAuth Parameters Registry

If the Resource Owner denies the access request or if the request fails for reasons other than a missing or invalid redirect_uri, the Authorization Server informs the client by adding the following parameters to the query component of the redirection URI using the "application/x-www-form-urlencoded" format, per Appendix B:


A single ASCII [USASCII] error code from the following:

error_description OPTIONAL #

Human-readable ASCII [USASCII] text providing additional information, used to assist the client developer in understanding the error that occurred.

Values MUST NOT include characters outside the set %x20-21 / %x23-5B / %x5D-7E.

error_uri OPTIONAL#

A URI identifying a human-readable web page with information about the error, used to provide the client developer with additional information about the error.


if a "state" parameter was present in the client Authorization Request. The exact value received from the client.

More Information#

There might be more information for this subject on one of the following: