... 821You cannot add a SharePoint group to another SharePoint group. This is known as “nesting” and it is not compatible with SharePoint 2010. If you try to nest groups, SharePoint will give ... the user name(s), AD group name, or SharePoint group name and validate. 4. When granting permissions, you can add the desired user or AD group to an existing SharePoint group or you can give ... need to troubleshoot unique permissions errors.Editing User AccessOnce a user, AD group, or SharePoint group has been given access, you can edit this access from the Ribbon on the Site Permissions...