If there is a customer order on a customer but we have to invoice another customer :
1 / finalize the order and invoice
2 / on the item = CAS371 change the PRI corresping to the PRI of OIS100
In CAS371 F14 => new PMP (average price)
3/ in MAZ create an credit note no stock of the item same customer => check the PRI in OIS100 is the same than the CAS371 (same delivery date OIS100 >= day today)
4/ in MOZ create an invoice no stock with the item, new customer => check PRI in OIS100 is the same than CAS371