Accounts payable automation digitizes the invoice-to-pay cycle, replacing manual entry, routing, and matching with software that captures invoices, codes them, enforces approval workflows, and executes payments. Core capabilities include AI-based invoice capture and line-item extraction, two- and three-way matching against purchase orders and receipts, exception and approval routing, duplicate and fraud detection, multi-method payment execution, and ERP integration. The category spans standalone AP platforms and AP modules within broader procure-to-pay and spend-management suites.