PO Match Gate

Send a PO and its invoice, get a pass / hold verdict before anything gets paid.

A two-way-match clerk that gates your AP queue. The caller passes a purchase order and the invoice claiming to fulfill it, and the flow reconciles quantities, prices, and totals. Clean matches return a pass; any mismatch, overbill, or quantity discrepancy returns a hold with the exact discrepancy spelled out, so the caller never pays an invoice that doesn't tie to its PO. Example input: "PO-9920: 100 units widget-A @ $2.50 = $250.00. Invoice INV-7781 against PO-9920: 100 units widget-A @ $2.65 = $265.00." Example output: "{ matched: false, status: 'hold', discrepancies: ['unit price $2.65 vs PO $2.50 (+$0.15/unit)', 'total $265.00 vs PO $250.00 (+$15.00)'], note: 'Hold for buyer approval: price variance above PO.' }"