Hi, Please can you change the Copy Invoice function so that it either doesn't duplicate the PO Number from the old invoice into the new one or that it asks you - if there is PO Number in the original invoice - whether you want to include the PO Number in the copied invoice or not. We keep on forgetting to delete the old PO number in the new invoice and it can cause real problems.
I don't think there are many situations where you want to copy an old invoice and include the old PO number. It is much more common that you want to include the content of the invoice (line items , prices etc) and the customer name, details etc but the new invoice will need a new PO number in virtually every scenario as it relates to a new/different payment. If you don't notice this when you copy an invoice and it goes out with an old PO number that has been paid the invoice will often be ignored.
There are circumstances where you might generate several invoices against the one purchase order number (for example if you receive an order for 1000 items, but ship them as 2 lots of 500)