We're enjoying the application but I have a question:
I know I can add PO numbers to invoices for my clients' convenience, but can I conduct the required internal processes to create requests for payments, track progress and approve them via our account?
in order to provide such functions we would have to know your sales data what is impossible without integrating our system with your store. Nevertheless, you can use our documents, such as proforma (which can be created with one click from PO) to generate kind of payment request, reports to track progress and invoices (which can be created with one click from proforma) to confirm the transaction. You can also use online payments and track payment statuses.