Permission & Access Issues

Fix OneDrive and SharePoint Access After Restoring a Microsoft 365 User

Huma Ashraf Ch Sep 30, 2026 870 views

Question details

A recently restored Microsoft 365 user is unable to access their OneDrive or SharePoint sites, encountering errors that the account cannot be found due to an identity mismatch.

How to Fix OneDrive and SharePoint Access for a Restored Microsoft 365 User

Product: Microsoft 365
Device & OS: not provided
Scenario: Reconnecting a previously deleted and successfully restored Microsoft 365 user to their original OneDrive files and SharePoint permissions.
Observed behavior: The system throws an 'account cannot be found' error when accessing SharePoint or OneDrive, and the user's file access remains blocked despite the account being active.

Before you start

Verify that the user account has been fully restored in the Microsoft 365 Admin Center and that they are assigned an active license that includes SharePoint and OneDrive services.

Solution 1Recommended

Run Self-Help Diagnostics in Microsoft 365 Admin Center

Use Microsoft's built-in diagnostic tools to detect and automatically resolve user ID mismatches for OneDrive and SharePoint.

When a user is deleted and restored, their unique internal identifier might fail to sync properly across SharePoint Online and OneDrive. The PillarCheckUserAccess and PillarSiteUserIDMismatch diagnostics are designed to fix these background sync issues.

Retrieve the OneDrive URL

Log in to the Microsoft 365 admin center. Navigate to 'Users' > 'Active users' and select the restored user. Go to the 'OneDrive' tab and click on 'Create link to files' to generate and copy the correct OneDrive URL.

Launch Support Diagnostics

Click on the 'Help & Support' button at the bottom right of the admin center to open the support pane.

Run PillarSiteUserIDMismatch

Type 'PillarSiteUserIDMismatch' into the search bar and press Enter. Provide the affected user's email address and paste the OneDrive URL you copied earlier, then run the diagnostic.

Run PillarCheckUserAccess

If the issue persists, search for 'PillarCheckUserAccess' in the Help & Support pane, enter the requested user details, and allow the system to apply the automated fix.

Run Self-Help Diagnostics in Microsoft 365 Admin Center

Wait for synchronization: After the diagnostic reports a successful fix, it may take up to 24 hours for full access permissions to propagate across all SharePoint and OneDrive servers.

Solution 2

Request Backend Repair from Microsoft Support

If self-help diagnostics fail or the 'Create link to files' option is missing, the backend association must be manually repaired by Microsoft.

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Frequently Asked Questions

Why does restoring a Microsoft 365 user cause an identity mismatch?

When a user is deleted and subsequently restored, their unique internal identifier (PUID) might change or fail to synchronize completely across all Microsoft 365 services. This leaves SharePoint and OneDrive looking for the old identifier, causing access denied or account not found errors.

How long does it take for a restored user to regain OneDrive access?

Normally, basic Microsoft 365 services are restored within a few minutes, but complex permissions like SharePoint sites and OneDrive access can take up to 24 hours to fully sync and propagate across Microsoft's global servers.

What does it mean if 'Create link to files' is missing in the admin center?

If the 'Create link to files' option is unavailable under the user's OneDrive tab, it typically indicates that the user's OneDrive space was completely de-provisioned or deeply corrupted during the deletion process. This scenario almost always requires opening a support ticket with Microsoft for backend intervention.

Document & File Issues