Default Android contacts sync with active directory

Best Android Fans,

I'm looking for a solution to fill in contact information from Active Directory (name, telephone numbers). The contact list of the android

I have played for some time with the app "LDAP sync" but I do not filter the data correctly.
I did it succeeded to get all domain users added but I only want the users of a specific organization unit.

Anyone have any ideas for this problem? Or another solution for what I want.

Thank you!