Intake-to-Pay platforms streamline the full purchasing cycle from internal request through payment — automating purchase requisitions, approval routing, PO generation, receipt confirmation, and invoice matching in a single workflow. Core capabilities include intake forms and request portals, configurable approval chains with policy enforcement, catalog-based and free-form purchasing, PO creation and dispatch, three-way matching (PO to receipt to invoice), real-time spend tracking, and integration with ERP and AP systems. The category represents the modern evolution of Procure-to-Pay, emphasizing guided buying experiences and self-service intake over traditional requisition forms. It spans platforms like Zip, Tonkean, Procurify, and Coupa's intake modules.