To check that the permissions are applied correctly, proceed as follows: 

  1. In the Active Directory Users and Computers window, open the View menu, and select Advanced Features.
    Right-click your group, and select Properties from the context menu. 

  2. Open the Security tab and click Advanced. Advanced Security Settings window opens. 

  3. On the Permissions tab, verify the permission entries that apply to your group:

    The granted permissions should be sufficient for the users of this group to modify user information in the Active Directory using the PhoneBook tool.