Exit to insert customer number in PO
I have a sales order and I create a requisition / purchase order - make to order document with account assignment category E.
In the account assignment tab I have to insert the sales order number.
Do you know if it is possible, in that moment or when I save the document, to have the customer number (from sales order) - CMMDA-KUNNR (Customer in Delivery Address tab) - filled automatically. This is because I want to have the customer address and not the plant address and if I change manually this field I have the customer address. However I want to have this process automatically.
Thanks in advance for any help.