How To Setup Concurrent Program Incompatibility at Domain (Operating Unit) Level

Hi,

I need to setup a custom program to be incompatible with itself when it is run within same Operating Unit or Same responsibility.

I read thru multiple notes of Oracle, all of them says I should be able to achieve it by setting the program to be incompatible at 'Domain' level.

Extract from one note "Domain – Program incompatible at a domain level. You can define a custom domain conflict like Operating Unit, Inventory Organization, SOB, etc."

My question is how to do I define the 'custom domain' ? Kindly share details if you have achieved the same requirement.

Thanks,

Shareef