Automate invoice processing and PO matching

Most invoice automation software covers capture: invoices read into fields. The checking still happens by hand, with a clerk comparing each line to the PO and the receipt, chasing duplicates and keying the exceptions. Unstract runs those checks on every invoice and posts the clean ones to your ERP, so the clerk sees only the invoices that don't match.

In two passes. LLMWhisperer first turns each page into text with the layout kept, so a line table stays a table even on a skewed scan or a phone photo. Document Studio then extracts the fields you defined by what they mean, not where they sit, so a vendor's new layout returns the same record. Every value carries a confidence score.

Each invoice is read in the language it was written in, and the currency is captured as printed alongside every amount. Matching runs against the PO in its own currency, so a euro invoice is checked against a euro PO line rather than a converted guess.

Three-way matching checks that each invoice line agrees with the purchase order and the goods receipt before it's paid: quantity received, unit price and total, within your tolerance. Unstract runs it on every invoice, along with checks for repeated invoice numbers, changed vendor bank details and tax that doesn't add up. A failed check holds the invoice with the reason attached.

Keep the model on the page and check its output. LLMWhisperer gives the model the real text of the invoice, Document Studio extracts against your field definitions, and Flow checks every amount against the PO, the receipt and the invoice's own totals. A figure that fails a check stops for a person instead of posting.

It stops in a review screen that shows the line, the page it was read from, and the PO and receipt it was checked against, side by side. An AP clerk approves it, corrects it or sends it to the buyer, the decision is recorded against the invoice, and every other invoice keeps moving.

To the systems AP already uses: the bill to your ERP or accounting system, such as NetSuite or QuickBooks, ready for the next payment run, exceptions to your approval chain, and a copy to a shared drive or a database if you want one. Flow posts it as part of the run, so nothing is downloaded and keyed again.

Unstract is SOC 2, ISO 27001, GDPR and HIPAA compliant. Invoices are encrypted in transit and at rest, never used to train models, and kept only as long as you choose, and any change to a vendor's bank details goes to a second reviewer before a payment run. Self-hosted deployment keeps processing inside your own environment; see the Trust Center.

You don't need developers. In a consultation we build the invoice run around your own invoices, your checks and your ERP, run it on one AP inbox, and most teams are live there within days. The other inboxes follow when the numbers hold.