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https://en.wikipedia.org/wiki/Invoice_processing

Technology has long enabled the automation of invoice processing from arrival to post. This means that at arrival of the invoice, the same accounts payable clerk will only need to scan the invoice into an automation software. The automation software then converts the invoice's scanned image into a text researchable document. The different fields on an invoice can also be defined into the software so that it remembers which fields it should capture and register into the ERP systems, for instance, the amount purchase, the quantity, the supplier name, the supplier code, and so on. The benefits of an automatic processing work flow may include reduced human error, on-demand reports, and data resilience. Automated invoice processing solution vendors include Oracle AP Solutions, Basware, Tipalti, Palette Software, IQ software, Smarty Software, Itesoft, docSTAR, Top Image Systems, Kofax, Artsyl Technologies, ABBYY, CharacTell, iPayables, Transcepta, Automation Centre, Compello, Tradeshift, Ariba, Hyland Software, Open Text, Perceptive Software, ARDEM, Esker, ReadSoft and SER Group. Most automation software today integrates into common organizational ERP systems such as those offered by Dajon Data Management SAP, and Microsoft.