Fix SharePoint Files Showing the Same Modified Date and User
Question details
Users need to resolve an issue where hundreds of SharePoint files and folders incorrectly display the exact same modification date and user.
- Product
- Microsoft SharePoint Online
- Device & OS
- not provided
- Scenario
- Viewing or managing document libraries in SharePoint Online.
- Observed behavior
- Hundreds of files and folders show identical modified dates and users despite no actual user access, and version history displays no corresponding activity.
Ensure you have Microsoft 365 administrator privileges, as investigating this issue requires access to the Microsoft Purview portal and the ability to open support tickets.
Investigate Audit Logs in Microsoft Purview
Use the Microsoft Purview compliance portal to trace exact file, folder, synchronization, or permission activities that triggered the date change.
Since the version history inside SharePoint does not reflect the changes, the audit logs can reveal background processes that modified the file metadata.
Sign in to the Microsoft Purview compliance portal using your Microsoft 365 global admin credentials.
In the left navigation pane, scroll down and click on 'Audit'.
Set the date and time range to exactly match the unexpected modified dates shown on the affected SharePoint files.
Filter the search by the affected user, site, or specific file activities to identify any automated processes, such as migrations or syncing, that caused the bulk update.
Review Background Tools and Policies
Check for automated systems, retention policies, or third-party apps that might have bulk-updated the file metadata.
Open a Microsoft 365 Support Ticket
If the cause cannot be identified internally, escalate the issue to Microsoft Support for a service-side investigation.
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Frequently Asked Questions
Why does the SharePoint version history not show the modification?
Bulk metadata changes triggered by background processes, server-side glitches, or third-party migration tools often bypass the standard document editing process, meaning a new user-facing version is not recorded in the history.
Can Microsoft 365 retention policies change the modified date of files?
Yes, automatically applying or updating retention labels on a large number of files can sometimes alter the modified date and list the system or the administrator who created the policy as the modifying user.
What are HAR logs and why might Microsoft support need them?
HAR (HTTP Archive) logs record the network requests and interactions between your web browser and the SharePoint server. Support teams use them to identify specific backend network or server errors that cause abnormal behaviors.
Do I need special permissions to check Purview audit logs?
Yes, only users who have been assigned the appropriate administrator or compliance roles in Microsoft 365 can access, search, and view audit logs in the Microsoft Purview portal.
