https://community.appian.com/discussions/f/data/10159/user-data-managementOne of our developers has the following question in terms of how Appian works. In our use case, 1. The user information is stored in 3 places: 1.1. application defined CDTs/tables, 1.2. Appian internal user management system, 1.3. Active Directoryen-USTelligent Community 12https://community.appian.com/thread/44870?ContentTypeID=1Fri, 14 Apr 2017 20:00:05 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:2a7db83a-3eb4-4ad8-94a1-d16d19af69b1Eliot GersonFor &quot;1.2&quot;, yes, Appian has a record of user accounts in the system. Your active directory (&quot;1.3&quot;) is a system external to Appian, so it&amp;#x27;s up to you what data you maintain there. <br /> <br /> Generally speaking, yes, the user data in Appian is maintained independently of your external systems, hence the common use case of LDAP synchronization (to ensure that consistency is maintained between your AD and Appian data). <a href="https://docs.appian.com/suite/help/17.1/LDAP_Synchronization.html">docs.appian.com/.../LDAP_Synchronization.html</a><div style="clear:both;"></div>