Configure Active Directory synchronization
It is important to select options in the correct order in the Directory Services synchronization page. Performing these steps causes a task to run in the background. You can see the result of the task in Accounts > Users—the list of users populates automatically when the task is complete.
An Active Directory (AD) server consists of containers that hold records (users, computers, printers, etc.) organized by type, geographical location or similar. Synchronization, settings and any related operations available in this window can be applied to servers or individual containers, depending on your selection.