Generate a customer PO from a SO

Dear Community,

I have this challenge for my client,

Client has 2 companies, A and B.

company A is running JDE (finance, distribution);

company B is in JDE for finance only, holds multiple branches B01, B02 as different ship to addresses. However the branches are not in JDE as we do not track inventory

Company A sells goods to company B. shipping from main depot A01

First solution is to use standard SO line type S, ship to = B01 or B02, bill to B, line type S

Only issue is that Finance dept requires not only an AR invoice for B, but also a PO in order to create the voucher in AP for company B