I need to be able to send some of my business customers monthly statements, indicating how many invoices they have open and how much they owe on account. We already use the app "Invoice Falcon" to organise and send professional looking invoices (which isn't possible within Shopify itself). Now I need to be able to summarise all these invoices in one statement. Should be pretty standard business procedure.
Please advise as to the best way to achieve this and make it look less than amateurish.