How to Make a SharePoint List Column Editable Again After Migration
Question details
The user needs to restore editing capabilities to a SharePoint list comments column that became read-only after migrating from SharePoint 2013 to Microsoft 365.

- Product
- SharePoint Online
- Device & OS
- not provided
- Scenario
- Post-migration data management where users need to update fields in a migrated SharePoint list.
- Observed behavior
- A comments column that was previously editable in SharePoint 2013 is now completely read-only in Microsoft 365 and cannot be modified by users.
Ensure you have Site Owner or Full Control permissions on the migrated SharePoint site to modify list settings, and verify that no custom workflows are intentionally locking the column.
Test in Classic Experience and Verify Column Settings
Switching to the Classic Experience helps identify whether the read-only issue is caused by the Modern UI rendering or an actual backend configuration lock.
SharePoint Online does not have a direct toggle to make list columns read-only in all situations. However, during a migration from SharePoint 2013, compatibility issues can cause columns to lock in the Modern Experience.
Navigate to the migrated SharePoint site and open the list containing the read-only comments column.
Click the 'Return to Classic Experience' link located at the bottom left corner of the screen.
Attempt to edit an item and modify the comments column. If it is editable here, the issue is specific to the Modern view.
Click the gear icon, select 'List settings', and check the column configurations, content types, and permissions to ensure nothing was improperly mapped during migration.

Submit a Microsoft 365 Admin Support Ticket
If the column remains read-only in both Classic and Modern experiences, backend diagnostic logs must be reviewed by Microsoft Support.
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Frequently Asked Questions
Why do SharePoint columns become read-only after a migration?
During a migration from older platforms like SharePoint 2013, custom configurations, unsupported field types, or specific migration tool behaviors can unintentionally flag a column's internal 'ReadOnly' property to true in Microsoft 365.
How can I access list settings in SharePoint Online?
While viewing your SharePoint list, click the gear icon (Settings) in the top-right corner of the page, then click 'List settings' from the dropdown menu to access column and permission configurations.
Can I use PowerShell to force a read-only column to become editable?
Yes, experienced SharePoint administrators can use PnP PowerShell to connect to the site and update the 'ReadOnlyField' property of the specific list column to false, which often resolves backend locks without recreating the column.




