Electronic Document Interchange (EDI) is a standardized method of transferring digital business documents between organizations via computer-based networks. EDI facilitates the automated exchange of documents needed for a business operation, such as purchase orders, invoices and shipping notices. By using EDI instead of paper-based methods, businesses save time and costs associated with document processing, and reduce data entry errors. EDI can also increase the accuracy and speed of invoice payments, and provide customers with real-time tracking information.