Logged on computers of users belongs to a particular OU

Hello,

I was trying to get the logged on computers of users belongs to a particular OU. User A is a member of Test OU in active directory and need to get the list systems the user A logged on to. Got the below mentioned relevance from relevance builder.

( ((exists value whose(it as lowercase = “ffff” as lowercase ) of components whose(type of it=“OU”) of distinguished names ((distinguished names of groups of it; distinguished names of it) of logged on users of it))) of active directory)

But not working as expected. Appreciated assistance.

Regards,
S