identity

Auth0 Errors

Auth0 errors: invalid_grant (refresh failed), unauthorized_client, access_denied, login_required, consent_required, mfa_required. Rate limits per Management API endpoint and Authentication API.

Auth0 OAuth errors follow RFC 6749. `invalid_grant` after refresh usually means refresh token rotation has invalidated the old token — store the new one. `mfa_required` returns an `mfa_token` to use with `/mfa/challenge`. Rule errors run server-side; check Logs → Failed Login Attempts. Management API rate limits are per-tenant, not per-user.

Official docs

https://auth0.com/docs/api/authentication

Status page

https://status.auth0.com/

Support

https://support.auth0.com/