Microsoft's Active Directory is a common enterprise user data store. If building apps for users authenticated by Active Directory, connecting FusionAuth to it might be desirable. Another use case could involve internal applications for employees requiring authentication against Active Directory and external applications with user data stored in FusionAuth. FusionAuth can act as a CIAM for external users while delegating internal account authentication to Active Directory. Applications no longer need to understand LDAP or connect to the Active Directory server, instead relying on FusionAuth's OAuth/OIDC or SAML support for authentication information. The FusionAuth LDAP connector enables this setup, allowing applications to leverage Active Directory as a system of record for user data while utilizing FusionAuth for application authentication and management.