customer default Branch? Is there any setup that can be done so that when a SO is entered against a

If I have different customers, but each one of them is allowed to use only one branch for his sales orders

like for example

If you have a school with multiple sites and campuses

then each student (customer) can only be linked to one business unit or branch

so that I can direct the revenue side of the sales order to that branch only to eliminate users mistakes

Thanks