A site group can only be deleted if there are no site members. Once the site group is deleted, it will be removed from Site Administration.
Open the Business Control Center.
Select Site Administration.
Select the Manage Site Assets link.
Enter the name of a project and click Continue.
Select the site group to delete.
Note: Before the site group can be deleted, all sites must be removed from the group.
Click the + button from the Actions menu and select Delete.
A confirmation message appears asking if you want to delete the site group.
Click OK to delete the site group.
