The invention concerns a multiparty accounts receivable and accounts payable system that allows business trading partners to use a single, shared system for both accounts receivable and accounts payable management. The system allows participants to use the substantial amount of financial and cash flow information captured by the system to borrow more efficiently by permitting lenders to view this information. Furthermore, the system provides a confirmation process to convert existing debt obligations into a new, independent payment obligation due on a date certain and free of any defenses to the underlying contract. The confirmed debt obligations provide a better source of working capital for the participants, or can be converted into electronic promissory notes. The system provides an electronic exchange for electronic promissory notes, allowing participants to raise working capital in various ways, for example, by selling them.