Permission & Access Issues

How to Restrict External Sharing for a SharePoint Folder

Algirdas JasaitisAlgirdas Jasaitis Oct 26, 2026 868 views

Question details

The user wants to know if a folder owner can independently block external sharing for a specific SharePoint folder.

How to Restrict External Sharing for a SharePoint Folder
Product
SharePoint Online
Device & OS
not provided
Scenario
A folder owner is trying to prevent unauthorized external users from accessing or sharing a specific folder within a SharePoint site.
Observed behavior
SharePoint Online only supports external sharing controls at the tenant and site levels. Individual folder owners cannot independently disable external sharing for a single folder or file.
Before you start

Ensure you have Site Administrator privileges, as standard folder owners do not have the administrative rights required to change site-wide sharing policies.

Solution 1Recommended

Disable Member Sharing via Access Request Settings

Site administrators can modify access request settings to prevent standard members from sharing site files and folders externally.

Since external sharing cannot be toggled off for a single folder by its owner, the site administrator must adjust the sharing permissions for the entire site to prevent members from freely sharing links.

1
Open Site Settings

Click the gear icon located in the upper right corner of your SharePoint page.

2
Navigate to Site Permissions

Select 'Site permissions' from the settings menu dropdown.

3
Access Advanced Settings

Click on 'Advanced permissions settings' at the bottom of the pane.

4
Modify Access Requests

Click on 'Access Request Settings' in the ribbon menu.

5
Disable Sharing

Untick the option 'Allow members to share the site and individual files and folders', then click OK to save your changes.

Disable Member Sharing via Access Request Settings
Permissions Updated: Members will no longer be able to generate sharing links for folders and files, effectively restricting unauthorized external distribution.
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Frequently Asked Questions

Can I block external sharing for just one specific file in SharePoint?

No, external sharing toggles are controlled at the tenant or site level. However, you can use the 'Manage Access' feature to assign unique permissions to that specific file, effectively removing external users from its access list.

Who has the authority to change external sharing settings in SharePoint?

Only Tenant Administrators can change organization-wide external sharing policies. Site Administrators can manage sharing permissions and access request settings for their specific sites.

What happens when I stop inheriting permissions on a SharePoint folder?

When you stop inheriting permissions, the folder is no longer affected by permission changes made at the parent site level. This creates unique permissions, allowing you to manually add or remove specific users without altering access for the rest of the site.

Why is the 'Stop Inheriting Permissions' button missing?

You may not see this button if you only have standard 'Member' or 'Read' access. You need to have 'Full Control' or be a Site Owner to modify permission inheritance for folders.