OneDrive Error Codes

How to Fix OneDrive 'Lock Token Does Not Match Existing Lock' Error

Huda Qurayshi Oct 9, 2026 869 views

Question details

The user is unable to edit a shared OneDrive file because the system throws a lock token mismatch error.

How to Fix the OneDrive 'Lock Token Does Not Match Existing Lock' Error

Product: Microsoft OneDrive
Device & OS: not provided
Scenario: Attempting to open or edit a collaboratively shared file in OneDrive, often involving third-party integrations like Zapier.
Observed behavior: The shared file becomes locked and unavailable for editing, displaying a message that the lock token no longer matches the existing lock.

Before you start

Ensure you have a stable internet connection and verify with the file owner that your editing permissions have not been recently modified or revoked.

Solution 1Recommended

Download a Local Copy and Restart the Session

Bypass temporary synchronization locks by testing a local copy and allowing the server time to clear active sessions.

Temporary network disruptions or delayed syncs can cause Microsoft's servers to hold onto an outdated edit lock. Downloading a copy helps ensure your data is safe while testing if the file itself is corrupted.

Download the file

Right-click the affected file in your OneDrive folder or web interface and select 'Download'. Open the downloaded local copy to confirm if it can be edited without errors.

Close and wait

Close the locked file completely across all your devices. Wait a few minutes (typically 5-10 minutes) for the server's session timeout to automatically remove any orphaned locks.

Reopen the file

Reopen the shared OneDrive file to see if the lock token error has been cleared and editing access is restored.

Download a Local Copy and Restart the Session

Solution 2

Reconfigure Sharing Permissions and Check Integration Logs

Resetting access permissions and verifying third-party automation tools can resolve persistent token mismatches.

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Frequently Asked Questions

What does 'lock token does not match' mean in OneDrive?

This error occurs when the tracking ID (lock token) your application sends to save changes does not match the active lock ID recorded by Microsoft's servers. It typically happens when multiple users or automated background apps try to edit a file simultaneously, causing a sync conflict.

Can third-party apps cause OneDrive file locks?

Yes. Automated integrations like Zapier, Microsoft Power Automate, or other API-based tools can temporarily lock a file while writing data in the background. If a human user tries to edit the file at the exact same time, a lock token mismatch error will occur.

How long does it take for a OneDrive file lock to expire?

If an orphaned lock is left behind due to a sudden disconnection or application crash, the server's session timeout will usually clear the lock automatically within 10 to 15 minutes, provided all users completely close the file.

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