In billing due list (Transaction VF04) we find that when the sales orders are displayed on execution of this transaction and we select all the sales orders and click on collective billing button, very few of them are included in the proforma invoice. Earlier all of those selected used to become part of proforma invoice.
I have tried debugging after selecting all the sales order and clicking on the collective billing button (all of which is standard SAP code), but cannot understand
why some of the sales order are included in the proforma invoice and why some are not included.
Any help would be greatly appreciated.
Thanks in advance.