When three-way matching still misses a problem
Matching invoice, PO, and goods receipt is necessary — but rate cards, freight addenda, and partial deliveries still create gaps.
Three-way matching remains the backbone of vendor invoice verification. An invoice line that cannot be tied to a purchase order and a receiving record deserves a second look. Yet many Hong Kong trading firms discover exceptions that sailed through an automated match.
Rate schedules hiding in attachments
A PO may state a unit price for the core goods while a separate rate card governs packing, fumigation, or weekend receiving. The invoice matches the PO quantity and the headline price, then adds a surcharge that never appeared on the order. Matching software that only compares three numeric fields will not raise a flag.
Partial deliveries across weeks
Goods receipts split across two weeks can leave an open PO quantity that later absorbs an over-shipment. Without reviewing the receiving timeline, an invoice that “matches” the remaining PO balance may still exceed what arrived in the period you care about.
What we add during verification
In Cloudopstools engagements we keep the three-way match as a starting test, then read supporting schedules and receiving dates for high-value vendors. The extra minutes per invoice are where many recoverable differences appear.