Active Directory Resource Pool synchronization:-
Using the Active Directory Resource Pool Synchronization, you can select an Active Directory Group with which to Synchronize the Enterprise Resource Pool, check the status of the synchronization, and choose to reactivate inactive users.
Step 1: Open active directory(AD) to click on window Start button.
Step 2: Now add the user in AD.
Step 3: Create A Group in AD.
Step 4: Add users in a group you want to synchronization.