If members have been added or removed from the Active Directory domain group, the Vault Server group can be updated to reflect the changes to the group. 
Note: You must be assigned the role of Administrator to perform this operation. 
- In the ADMS Console, select Tools 
 Administration 
 Global Settings.  
- In the Global Settings dialog, select the Security tab. 
 
- Click Groups. 
 
- In the Group Management dialog, select a group. 
 
- Select Actions 
 Update Domain Group.  
Note: One advantage to using groups is when you are adding users to a vault or vaults. First, create a group and add members to the group. Once members have been added to the group, assign a vault to the group.