The system enables a data processing framework that polls for files using a listener, controls the workflow using event driven logic, processes financial transactions, and creates a business to business trading partner network. The listener ensures the reliability and data integrity of input files and performs archiving functions. The payment management functions automatically processes transactions, including payor (e.g., the buyer) initiated payments to a payee (e.g., a supplier) by utilizing a flexible, decoupled processing architecture. A payment management computer identifies a universal identifier for each entity and forms relationships and hierarchies in order to increase efficiency of the trading partner network. Metadata describes the format, validation and relationships for a wide variety of financial account data.