Creation of PO from Equipment WO - Manual Bussiness Unit OMCU

Hi,

I'm trying to find out if it is possible to enter the bussiness unit OMCU, for a purchase order created from an equipment work order (P17730 > Row > Create PO).

This would be useful for PO that have a line type with an inventory interface of C (inventory and account). Usually we would create these PO in P4310, and manually enter the account with the job business unit as the OMCU.F4311.

But if the PO is to be created from the work order, I am not finding the way to enter the job manually. It would be a different value from the branch, both of the header and detail of the PO.