Fix OneDrive Sync Errors for an External SharePoint Site
Question details
A single user is unable to sync an external SharePoint site using OneDrive, while other users can sync without issues.

- Product
- Microsoft OneDrive and SharePoint
- Device & OS
- not provided
- Scenario
- Attempting to sync a folder from an external SharePoint site to a local machine.
- Observed behavior
- The user encounters a persistent sync error across multiple computers and browsers, which is not resolved by reinstalling or resetting the OneDrive application.
Verify that you have Microsoft 365 administrator privileges, as resolving account-specific synchronization issues often requires backend diagnostic access and support tickets.
Contact Microsoft 365 Support for Account-Level Diagnostics
Since standard troubleshooting fails and the issue follows the user across devices, the problem lies within the account's backend configuration and requires Microsoft support.
When an issue is isolated to a single user and persists across different computers, local app troubleshooting will not be effective. The Microsoft support team has the necessary backend permissions to inspect the account's token and permission mapping.
Sign in to the Microsoft 365 admin center using your administrator credentials.
Navigate to the 'Support' section in the left-hand menu pane and select 'New service request'.
Briefly describe the external SharePoint sync error, making sure to note that device-level troubleshooting (like resetting OneDrive) has already been performed and that other users are unaffected.
Submit the ticket so Microsoft's support team can remotely collect logs and run diagnostic tools on the specific user account.

Verify User Permissions on the External SharePoint Site
Ensure the specific user hasn't had their permissions altered, expired, or revoked on the external site.
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- 1. Visit the Official Site: Go to the official WPS Office website.
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Frequently Asked Questions
Why does the OneDrive sync error happen to only one user?
This typically indicates an account-level glitch, a corrupted backend permission token, or an expired guest access right, rather than a local app issue. This is why reinstalling or resetting OneDrive doesn't resolve it.
Can I fix an account-specific SharePoint sync error without an admin?
Usually, no. If standard local fixes fail and the issue is isolated to your account across multiple devices, a Microsoft 365 administrator must engage Microsoft support to run backend diagnostic tools.
How do I collect OneDrive sync logs for support?
Microsoft support will typically provide a specialized diagnostic tool, such as the Microsoft Support and Recovery Assistant (SaRA), which you can run on the affected machine to automatically gather the necessary logs.




