The system administrator must attach AD to an organization. After AD is attached to an organization, AD users can be imported from the tenant portal by a tenant administrator.
Log in to the cloud portal with administrator, Click the System tab and click the Manage & Monitor tab.
In the left pane, select Organizations and select the Production organization. From the Actions menu, select Open.
Click the Administration tab and select LDAP in the left pane. On the LDAP options tab, select Custom LDAP Service. Click the Custom LDAP tab.
Configure the settings to connect to LDAP and fill all the required information of the AD and click Apply. Scroll to the top of the window and click Test LDAP Settings.