How to Fix SharePoint CSOM Error When Deleting File Versions
Question details
The user needs to resolve an 'Operation is not valid due to the current state of the object' error encountered when using CSOM PowerShell to delete previous file versions.
- Product
- SharePoint Online
- Device & OS
- not provided
- Scenario
- Executing a CSOM PowerShell script to clean up or delete previous versions of files in a SharePoint document library.
- Observed behavior
- The PowerShell script fails with an object state error, which is often triggered by files having different owners, unique permissions, or restricted version access settings.
Verify that your account has Site Collection Administrator privileges or explicit 'Delete Versions' rights for the specific document library before attempting administrative CSOM scripts.
Verify Manual Deletion and Correct File Permissions
Test if the file versions can be deleted via the SharePoint web interface to isolate permission issues from scripting errors.
Often, CSOM errors are actually permission denials disguised as object state errors. Files with unique permissions or different owners might block the executing account from deleting their versions.
Navigate to the SharePoint document library, locate the affected file, click the ellipsis (...) next to it, and select 'Version History'. Try deleting a previous version manually.
If manual deletion fails, close the version history, select the file, click 'Manage access' in the details pane, and select 'Advanced'.
Review the unique permissions. Ensure that the account running the PowerShell script has Full Control or explicit 'Delete Versions' permissions for that specific file, then re-run the script.
Review CSOM Object State and Script Logic
If manual deletion is successful, the error originates from how the CSOM script handles the file object or context.
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Frequently Asked Questions
What causes the 'Operation is not valid' error in SharePoint CSOM?
This error usually occurs when the CSOM context hasn't properly loaded the object properties before executing an action, or when the executing account lacks the required permissions (like 'Delete Versions') for files with unique access controls.
How do I check if a file has unique permissions in SharePoint?
Select the file in your document library, open the details pane, click 'Manage access', and select 'Advanced'. If a yellow banner states that the item does not inherit permissions from its parent, it has unique permissions.
Can I delete all previous file versions at once in SharePoint?
Yes. You can manually delete all versions from the Version History menu by clicking 'Delete All Versions', or you can automate this process via a PowerShell script provided your account has sufficient administrative privileges.
