Manage site admins
This article describes how Global Administrators and SharePoint Administrators in Microsoft 365 can add and remove site admins (previously called "site collection admins"). If you're an owner of a communication site, or a site that belongs to a Microsoft 365 group, see Manage your SharePoint site settings for info about giving people access to your site. If you're an admin for a classic site, see Manage your SharePoint site settings.
If you're a Global Administrator and want info about assigning other users the SharePoint Administrator role in Microsoft 365, see Assigning admin permissions.
Add or remove site admins in the new SharePoint admin center
By using the newSharePoint admin center, you can change the owners for sites that use the new team site and communication site templates. You can also add and remove group members in the Microsoft 365 admin center. For info, see Add or remove members from Microsoft 365 groups.
- Go to Active sites in the SharePoint admin center, and sign in with an account that has admin permissions for your organization.
If you have Office 365 operated by 21Vianet (China), sign in to the Microsoft 365 admin center, then browse to the SharePoint admin center and open the Active sites page.
In the left column, select a site.
Select Permissions. For a group-connected team site, you can add and remove group owners and additional site admins. For other sites, you can add and remove site admins and change the primary admin. Note that if you remove a person as a primary admin, they will still be listed as an additional admin. For info about each role, see About site permissions.