To associate a cell with an OU, for example, you must be a member of the Domain Administrators security group, or you must be assigned permissions to manage container objects in an OU.
Before you associate a cell with an OU, make sure you chose the schema mode. You cannot easily change the schema mode after you create a cell, including a default cell.
- Start Active Directory Users and Computers.
- In the console tree, right-click the OU or the domain for which you want to create a cell, click Properties, and then click the AD Bridge Cell Settings tab.
- Under AD Bridge Cell Information, select the Create Associated AD Bridge Cell check box, and then click OK.
You can now associate a user with cells.
For more information, please see Associate a User with AD Bridge Cells.