Accessing Sales Receipts and Purchase Payments

Hi all, hope someone can help me.

Using Web Services, how can I gain access to a list of Receipts posted against Sales Invoices (or indeed Payments posted against Purchase Invoices) please?

Thanks, David.

I think I can get the information I need from the report “Bank Account Register” but how do I make the report (or the source data) available via a Web Service? I’d also need to supply date filters.

Thanks for any help or guidance, David.