Sign-in & Login Problems

Fix Microsoft 365 Repeated Sign-In Prompts in Citrix VDI

Maira Mehtab Sep 20, 2026 868 views

Question details

Users need to prevent Microsoft 365 applications from repeatedly prompting for authentication upon launching a new non-persistent virtual desktop session.

Product: Microsoft 365
Device & OS: Citrix CVAD 2402 / Non-Persistent VDI
Scenario: Launching Microsoft 365 applications within a new Citrix non-persistent VDI session.
Observed behavior: Microsoft 365 apps request a sign-in during every new session, even though FSLogix is installed and configured in the environment.

Before you start

Ensure you have administrative access to your Citrix environment, FSLogix configuration policies, and the Microsoft 365 Admin Center before attempting these troubleshooting steps.

Solution 1Recommended

Review FSLogix Profile Persistence and Office Activation

Verifying your FSLogix settings ensures that user identity and Office activation tokens are properly retained and roamed between non-persistent sessions.

In a non-persistent VDI environment, Microsoft 365 relies on tokens stored in the user's local AppData to remember sign-ins. If FSLogix is not capturing these specific directories, the tokens are destroyed upon logoff.

Verify FSLogix Configuration

Check your FSLogix profile container policies in the Group Policy Management Editor to ensure it is configured to include the local AppData folders where Microsoft 365 stores activation tokens.

Enable Shared Computer Activation (SCA)

Confirm that Shared Computer Activation is properly configured for your Microsoft 365 installation on the master VDI image. This is required for environments where multiple users access the same operating system.

Check Identity Containers

Ensure that the Office Data File Container (ODFC) is actively running and correctly set up to retain login credentials and Azure AD PRT (Primary Refresh Token) data.

Solution 2

Engage Support for Joint Log Investigation

Since the issue spans across Microsoft and Citrix configurations, analyzing deep diagnostic logs with official support teams is the most effective approach for unresolved cases.

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Frequently Asked Questions

Why does Microsoft 365 keep asking for a password in a Citrix VDI?

This usually happens when the Office authentication tokens stored in the user's profile are not persisting across sessions. If FSLogix is misconfigured or excluded directories overlap with token locations, the tokens are wiped when the session ends.

What is Shared Computer Activation (SCA) in Microsoft 365?

SCA is a special licensing mode required when multiple users share the same operating system, such as in a Citrix non-persistent VDI environment. It prevents Microsoft 365 from counting each session logon against a user's installation limit.

Can the FSLogix ODFC help prevent repeated Office sign-in prompts?

Yes, the Office Data File Container (ODFC) is specifically designed to roam Office-related data, including Outlook caches and Microsoft 365 activation tokens. Correctly configuring it helps maintain user identities across non-persistent sessions.

Login & Account Issues