Azure AD / Microsoft Entra ID – Logout from third-party OIDC app does not sign out Outlook / OneDrive (M365 apps)

oa-3 0 Reputation points
2026-01-14T07:09:51.7+00:00

Problem: When a user logs out via Azure AD SSO, Microsoft 365 apps like Outlook Web and OneDrive Web remain logged in in most browsers. Front-channel logout and token revocation do not terminate these sessions.

Goal / Question:

Is it possible to fully log out all Microsoft 365 web apps via SSO?

If not, what is the recommended approach to ensure that sessions are properly terminated or re-authentication is enforced?

Microsoft Security | Microsoft Entra | Other
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