Ask a payables team what takes their time and they’ll say volume. Look at what they actually do all day and you’ll see something else: most of their hours go on invoices that were never a problem.

Where the hours go

In a typical mid-size company, around 85% of supplier invoices match their purchase order and receipt with no issues. Someone still opens each one, keys the lines, ticks the match and sends it for approval. The other 15%, a price that changed, a short delivery, a duplicate sent under a new number, get squeezed into whatever time is left. Those are the ones that cost money.

At Saltmarsh Logistics, one of our customers, the payables team of 22 processed about 38,000 invoices a month. Their controller estimated that more than half the team’s week went on invoices that matched first time.

Flip the ratio

Our agent Tessa takes the matching invoices: capture, three-way match, coding and queuing for the payment run. The team gets the exceptions, each with the invoice, the purchase order, the receipt and a plain note on what doesn’t line up.

Three rules make this safe.

• A tolerance you set. Tessa approves only within a margin your controller chooses, 2% by default. Anything outside it is an exception, not a judgment call.

• Hands off the money. Tessa queues invoices for payment but never releases a payment, and never changes vendor records.

• Bank details are always human. A vendor changing its bank details is the classic fraud pattern. Tessa hands off every one, without exception.

What changes for the team

At Saltmarsh, Tessa matched 81% of carrier invoices without a person touching them within a quarter. The team got back about 1,900 hours a month, and spent them on the exceptions, on carrier relationships, and on analysis they’d never had time for.

Two results surprised them. Duplicate detection caught $412,000 in repeat invoices in the first quarter, because Tessa checks every invoice against every other, not just the ones a person remembers. And faster approvals brought early-payment discounts back: invoices that once took three days to approve now take four hours.

Start with the boring half

If you’re thinking about agents for payables, don’t start with the hard cases. Start with the invoices nobody argues about, set a tolerance you’re comfortable with, and run a few weeks of shadow mode. The exceptions will get better attention because your team finally has time for them.