Hi Lovekush,
You can have various rules to configure org data profiles, however if you have activated the org data profile as in my case, the system throws the pop up showing both the root org and the sales org attached in my screen shot above however if you select the root org then the system should automatically determine the sales org which is not happening in my case.
The z org data profile is based on attributes based on country.
Kind Regards
Atul