Troubleshooting Connected App OAuth flows — IP relaxation vs IP restriction, refresh token policy traps (default kills the connection on first refresh), session-revocation semantics, the OAuth error-code catalog (`invalid_grant`, `invalid_client_id`, `unsupported_grant_type`), per-user vs admin-pre-approved flows, and the user-policy check (Connected App must be assigned to the user via profile / permset). Covers the Login History debug trail. NOT for designing the OAuth flow itself — use integration/oauth-flows-and-connected-apps. NOT for a SAML / SSO login failure — use security/sso-saml-troubleshooting. Trigger keywords: 'invalid_grant', 'OAUTH_APP_BLOCKED', 'redirect_uri_mismatch', 'LoginHistory Status', 'LoginSubType', 'OauthRefreshToken', 'ForwardedForIp', 'SetupAuditTrail connected app', 'refreshTokenPolicy zero', 'isSecretRequiredForRefreshToken', 'works once then fails', 'diagnosis record'.
日本語の概要は準備中です。原文の説明を表示しています。