How it works
Three steps. No re-keying.
Connect your email
Connect Gmail. ininvoice automatically detects invoices, purchase orders and delivery notes arriving in your inbox.
Our engine analyzes every invoice
It automatically identifies the right PO (even when the data has OCR errors), matches every item line by line, rates the risk of the case (low, medium or high) and generates an explanation of what it found.
You see what fails, and approve
You get a clear report. What checks out, in green, ready for a person to approve. What has a problem, in red with the exact variance amount. Ready to act.
What exactly do we do?
When a supplier invoice lands in your inbox, you need to check that the amount billed matches what you ordered and what you received. Three documents that must line up. We compare them for you automatically.
The invoice
What the supplier charges you. It says: "I'm billing you X units of product Y at Z each."
The purchase order
What you ordered. The document that says: "I want X units of product Y at Z each."
The delivery note
What actually arrived at your warehouse. It confirms which items and quantities were received.
Example (synthetic data): You ordered 100 boxes of screws at €5 each. The supplier ships 95 boxes but bills you for 100 at €5.20. If you only check the total, you might miss it. But we look item by item: we catch the €0.20/unit price increase and the 5 missing boxes. Two errors you would have paid for without automatic checking.
Under the hood
Here's what happens every time an invoice arrives
From the moment a supplier emails you an invoice until you know exactly whether it's correct, how much you're being overcharged and what to do next. All automatic. See the automated invoice matching behind it, or run a single invoice through the free invoice matching checker.
Ingestion
You connect your email. We do the rest.
Invoices, purchase orders, delivery notes: format doesn't matter. We pick them up from your inbox and process them without you lifting a finger.
Classification
It knows what every document is. Even if the scan is rough.
The AI identifies whether it's an invoice, a PO or a delivery note. It extracts the supplier, the tax ID, every product line and the amounts. If the scan dropped a digit or the name has a typo, it fixes it before moving on.
Matching
If a single cent is off, you'll know.
We match every invoice line against your PO and your delivery note. Price, quantity, supplier: it all squares up or we flag it. Line by line, not headers that hide errors.
Risk
Suspicious invoices are held.
Every case gets a low, medium or high risk, derived from the matching result and shown with its reason. Possible duplicates and mismatches are held for a person to decide; nothing is approved without a person.
Review
No detective work. It explains everything.
Every issue arrives with a plain-language explanation: what it found, on which line, how much money is at stake and what your team should do. Approve, reject or request info from the supplier straight from the panel. Every decision is logged with date and user.
Invoice INV-2026-042 from Lopez Metalworks has a variance of +€142.00 on line 2. Unit price is €5.20/unit versus €5.00/unit on PO-112. Recommendation: query the supplier.
Report
See exactly where the money leaks out.
Real-time dashboard: how many invoices were processed, how many errors caught, which suppliers run the most variances and how much you avoided overpaying. Export the report to Excel for accounting or audit.
Try it with your own invoices
Send a few supplier invoices with their purchase order and delivery note, and see them matched line by line.
Or email us directly at hola@ininvoice.com
Try it with your own invoices
Send me 3–5 supplier invoices and, if you have them, the purchase order and delivery note for one of them.
Request a demo