Permission & Access Issues

How to Fix User Cannot Access Files Shared in Microsoft Teams

Aamir Naveed Akram Sep 28, 2026 869 views

Question details

A user is unable to access files shared in Microsoft Teams via the connected SharePoint site, even after basic troubleshooting.

How to Fix User Cannot Access Files Shared in Microsoft Teams

Product: Microsoft Teams
Device & OS: not provided
Scenario: A user attempts to open or view shared files within a Microsoft Teams channel but is blocked by access permission issues.
Observed behavior: The user cannot access the shared files despite seemingly normal file permission settings in the system.

Before you start

Ensure you have SharePoint Administrator or Microsoft 365 Global Administrator privileges, as standard users cannot modify backend site memberships.

Solution 1Recommended

Remove and Re-add the User in SharePoint

Resetting the user's membership on the connected SharePoint site often resolves deep-rooted permission glitches in Microsoft Teams.

Microsoft Teams files are hosted on a connected SharePoint site. When a user's permissions fall out of sync between Teams and SharePoint, manually refreshing their site membership can restore their file access.

Access Site Permissions

Find your connected SharePoint site URL and append /_layouts/15/people.aspx?MembershipGroupId=0 to the end of it to directly access the detailed site permissions page.

Remove the User

Locate the affected user in the membership list, select their profile, and choose the option to remove them from the site.

Re-add the User

Add the user back to the appropriate SharePoint group or Teams channel to refresh their permissions and restore their file access.

Administrator Required: You must be a SharePoint Administrator to access and modify the detailed people and groups layout page.

Solution 2

Submit a Service Request to Microsoft Support

If removing and re-adding the user fails, escalate the issue to Microsoft Support via the Admin Center.

Free Microsoft Office alternative

Try WPS Office for Seamless Document Collaboration

While troubleshooting Microsoft Teams and SharePoint permissions, consider WPS Office as a free, lightweight alternative. It offers excellent compatibility with Microsoft Office formats and provides a familiar interface for your team's document creation and sharing needs.

Free and lightweight suite including Writer, Spreadsheet, and Presentation tools.Highly compatible with Microsoft Office formats, ensuring seamless handling of Word, Excel, and PowerPoint files.Familiar user interface that requires zero learning curve for users migrating from Microsoft Office.Robust local and cloud collaboration features for efficient team document management.

microsoft office alternative - wps office

Frequently Asked Questions

Why do Microsoft Teams files open for some users but not others?

File access in Microsoft Teams is managed by backend SharePoint permissions. If a single user's SharePoint permission becomes corrupted or out of sync with the Teams channel, they may lose access while others can still open the files normally.

How do I find the connected SharePoint site for my Teams channel?

Go to the 'Files' tab in your Microsoft Teams channel, click the 'More options' (three dots) menu in the toolbar, and select 'Open in SharePoint' to launch the backend site in your web browser.

Will removing a user from the SharePoint site delete their uploaded files?

No, removing a user from the SharePoint membership group only revokes their access to the site. Any files they previously uploaded remain completely intact and accessible to other authorized users.

Can a standard team member fix this Teams file access issue?

No, resolving advanced permission mismatches between Microsoft Teams and SharePoint requires SharePoint Administrator or Microsoft 365 Global Administrator privileges.

Document & File Issues