{"chain":"supplier-invoice-three-way-match-check","look_at":"art-701-three-way-invoice-match.outcome","question":"A supplier invoiced 10 widgets at $5.00 each against PO-42, and we received all 10. Does the invoice match the PO and receipt, and is the VAT arithmetic right?","try_changing":{"field":"duplicate_window_days","step":"art-701-three-way-invoice-match","value":7}}