Sage 50 Accounts

I often get a PO for a client, but they pay via a ProForma. So, if I create a Sales Order, I have to dispatch the goods in advance to create the invoice. So, for these, I enter the Invoice directly. However, with just an invoice, I don't seem to be able…

We take a lot of proforma payments through sales orders and it would be very helpful if we could add a SagePay button to an SOP proforma. I see it is available for Sage 200, but I cannot see it for Sage 50. desktophelp.sage.co.uk/.../SagePayCustom.ht…