The Fotoware Alto IDS as Identity Provider is managed by Fotoware, while you manage the users in the user management of Fotoware Alto. In an enterprise, there is often an existing user repository (e.g., Active Directory) that manages all users in your organization. To avoid scattered user management, you can add your existing repository. This allows your IT to still update user attributes and access (e.g., employees who have resigned, new employees) in one central place.