Permission & Access Issues

How to Fix SharePoint Site Sharing When Advanced Permissions Are Required

Olivia MillerOlivia Miller Oct 26, 2026 868 views

Question details

Users are unable to share a SharePoint communication site because the system prompts that it has unique permissions and requires Advanced permissions settings.

How to Fix SharePoint Site Sharing When Advanced Permissions Are Required
Product
Microsoft SharePoint
Device & OS
not provided
Scenario
A site owner or administrator is attempting to share a SharePoint communication site with new users.
Observed behavior
The standard sharing controls are missing, and a message appears stating the site must be shared through Advanced permissions settings, often due to missing default SharePoint groups.
Before you start

Ensure you are logged in with an account that has Site Owner or Full Control administrator rights on the affected SharePoint communication site.

Solution 1Recommended

Verify and Restore Default SharePoint Permission Groups

Check for missing default SharePoint groups (Owners, Members, Visitors) in the advanced settings and restore them to enable standard site sharing capabilities.

SharePoint communication sites rely on default permission groups to manage sharing controls. If these groups are deleted or modified, the site defaults to requiring advanced permissions to prevent unauthorized access.

1
Access Site Permissions

Navigate to your SharePoint site, click the gear icon (Settings) in the top-right corner, and select 'Site permissions' from the dropdown menu.

2
Open Advanced Settings

In the Site permissions panel, scroll to the bottom and click on the 'Advanced permissions settings' link.

3
Verify Default Groups

Review the list of groups to ensure that the default Site Owners, Site Members, and Site Visitors groups exist and contain the appropriate users.

4
Restore Missing Groups

If the default groups are missing, click 'Create Group' on the ribbon, name them appropriately, and assign the correct permission levels (Full Control, Edit, Read). Add the required users to these restored groups.

5
Retry Site Sharing

Return to the main SharePoint site homepage and click the 'Share' button to verify that standard sharing functionality has been restored.

Verify and Restore Default SharePoint Permission Groups
Inheritance Note: Breaking permissions on a specific page library or list does not normally prevent users from sharing the site itself. If the issue persists, ensure the site collection features are correctly configured.
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Frequently Asked Questions

Why is my SharePoint site asking for Advanced permissions when I try to share it?

This typically occurs when the default permission groups (Owners, Members, Visitors) have been removed or when unique permissions have been heavily applied to the site's root level, forcing the system to fall back to advanced controls.

Does breaking inheritance on a document library prevent site sharing?

No. Normally, breaking permissions on a specific page, list, or document library only affects that specific element. It does not prevent you from sharing the entire SharePoint site.

How do I access Advanced permission settings in SharePoint?

Click the Settings (gear) icon in the top right corner of your SharePoint site, select 'Site permissions', and then click the 'Advanced permissions settings' link located at the bottom of the panel.