The receipt numbers are system generated for control purposes and cannot be amended, although you can use the ‘Supplier Reference’ to enter the purchase invoice number or any other reference required:
I think the ‘Supplier Reference’ would probably be best left to record the Supplier’s own Invoice number rather than effectively having two of my own references for the same Suppliers Invoice. If I understand this part correctly.
I will have to re-number & rename all my Supplier Invoices for this financial year, but that is not an insurmountable problem. Potential customers with more transactions than I generate may be deterred by this though.
I assume that I am using this part of QF correctly i.e. this is where I record goods & services ordered by my company etc. (regardless of whether goods/services are resold to my customers).