Separate PO Numbering under one Operating unit

Dear All

We have below requirement.

Setup is like — One LE » One SOB » One OU » Two Locations in different state

Business wants a separate Standard Purchase Order number based on Two different locations in different state/province.

For example, if PO is raised for State 1 then PO number should start from 1 & if PO is raised for State 2 then PO Number should start from 2

I checked the metalink, but don't see such functionality exists.

But still anyone has any more information / Solution to achieve this, please let me know

Thanks & regards

Santosh Lagu