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Unable to authenticate in Office 365 apps under Azure Active Directory

Josh Berry 0 Reputation points
2023-02-02T21:37:53.13+00:00

I apologize if this has already been answered, but my team has been looking for weeks and we haven't found an answer that works.

We recently started using AAD to manage our Office 365 apps. A few of our users (maybe a dozen of a few hundred) have had an issue where they will no longer be able to use their installed Office 365 apps. We do use MFA. It appears to be an authentication failure that causes the app to be unable to communicate with the server. If we open the exact same web app (Outlook, Teams, etc.) it works fine. We suspect a corrupt authentication token, but have no idea where it is located in the registry. Any help would be greatly appreciated, as we are at a loss.

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Office
A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.
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Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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  1. Akshay-MSFT 17,871 Reputation points Microsoft Employee
    2023-03-03T06:15:25.4433333+00:00

    @Josh Berry

    Could you please validate what error message do you see when user attempts to access office 365 desktop app in Azure AD sign ins.

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    Thanks,

    Akshay Kaushik

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