A Vault Server group that was imported from an Active Directory domain or promoted to an Active Directory domain can be demoted, creating a Vault Server-only group. Once demoted, the group is unique to the Vault Server and no longer associated with the domain group.
Administration
Global Settings.
Demote Domain Group. When the group is demoted, the domain name is removed from the group name. As a result, the demoted group may collide with an existing vault server group with the same name. If the vault server group name already exists, you are prompted to rename the demoted group. The vault server group retains the vault server group membership and permissions but is no longer associated with the Active Directory group.