Payables & Receivables
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Payables & Receivables
AI Vendor Invoice Agent
A vendor invoice arrives, gets matched to its purchase order and receipt, and any status question gets a straight answer.
Vendors keep asking whether their invoice arrived and when it will be paid, and someone has to dig through the accounting system to answer. At the same time, invoices that do not match the purchase order slip through. This agent matches each vendor invoice to its PO and receiving record, stops mismatches, and gives vendors a straight answer on status.
- Vendor invoices matched to the PO and receipt automatically
- Price and quantity mismatches stopped before anyone pays
- Vendors get clear status answers without chasing your team
$3,900
20–30 working days
Optional maintenance $249/mo
What it is
AI Vendor Invoice Agent is an agent that matches an incoming vendor invoice to its purchase order and receiving record, flags a mismatch, and answers status questions such as whether an invoice has been received or paid. It is narrower than full extraction: its job is the vendor-to-PO match.
Why businesses buy it
Paying an invoice that does not match what was ordered or received is a direct loss, and answering vendor status emails eats hours of finance time. Both get worse as you grow. After this build, every invoice is checked against its purchase order and receipt before payment, and vendors get prompt, accurate answers from a defined inbox or portal. Your team handles only true mismatches. The Scope Card lists the document types, fields and rules in writing before you order, so you know exactly what will run.
Problems this solves
Invoices get paid without anyone checking them against the PO
The agent matches each incoming vendor invoice to its purchase order and receiving record. Where quantities, prices or lines disagree, it flags the mismatch and holds the invoice in a review queue for your team.
Staff spend hours keying invoice details in by hand
Invoices arriving in your agreed inbox or upload folder are read automatically. The agent extracts up to 25 fields per document type and checks them against your validation rules before anything moves on.
Vendors keep emailing to ask whether their invoice was paid
The agent answers status questions such as whether an invoice was received, matched or paid. It reads the answer from your connected systems, so your team stops digging through records for each query.
Goods are billed before they have actually been received
Because the match includes the receiving record, an invoice for goods not yet logged as received is caught. It goes to a person for review instead of slipping through to payment.
A good fit if
Vendors regularly ask "has our invoice been received" or "when will it be paid", and someone has to dig through the accounting system to answer.
You already issue purchase orders and log receiving records, and want invoices checked against both before anyone pays them.
A price or quantity mismatch between the invoice, the PO and what was actually received should stop the invoice, not slip through.
You want vendor invoice status questions answered from a defined inbox or portal, not scattered across email threads with your accounts team.
Not the right fit if
You need broader invoice extraction across many vendor formats without PO matching being the point. See AI Invoice Intelligence, built for that broader extraction.
You need purchase orders created and tracked from the request stage, not just matched once an invoice arrives. See AI Purchase Order Agent, which covers that lifecycle.
You want the full payment workflow, including approval routing and scheduling the payment run. See AI Accounts Payable Agent, which covers that end to end.
You need more than three document types or more than 25 fields per type matched. Add a note at checkout for a quote, or use our Custom AI enquiry form.
How it works
- A vendor invoice arrives. It lands in the email inbox or upload folder you connected, in whatever format that vendor sends.
- Fields are extracted from the invoice. Vendor, invoice number, line items, quantities and prices come out as structured data.
- It is matched against the purchase order and receiving record. Quantities and prices on the invoice are checked against what was ordered and what actually arrived.
- Mismatches are flagged for review. A price that does not match the PO, or a quantity that does not match the receipt, stops for a person to check.
- Status questions get answered. A vendor or internal user asking whether an invoice has been received or paid gets a direct answer from the matched record.
- Confirmed matches reach your ledger. Once reviewed, the matched invoice is written into QuickBooks, Xero or the accounting system you connected.
What you provide within 72 hours
Your portal lists these the moment you order. Delivery starts the working day after everything is in and your access is checked.
- Your business information (company basics, hours and brand voice), shared during intake, or confirmation we can reuse what you gave us on an earlier order.
- At least 20 real sample vendor invoices, redacted if you need to, plus matching purchase orders and receiving records.
- The exact list of fields to extract and the matching tolerance for price and quantity mismatches.
- Access to your accounting system, such as QuickBooks, Xero or NetSuite, as the destination.
- Your chart of accounts and approval rules, and the name of the person who reviews mismatches.
- Admin credentials for each connected system, shared by adding our team as a user or creating a key you control during intake rather than emailed.
- The name of whoever can approve setup decisions and sign off when it goes live.
- An API key for your own AI model account (for example OpenAI or Google Gemini), created for this build with a spending limit.
The 72-hour rule. Send everything on your checklist, including access, within 72 hours of ordering so your build starts on time.
Timeline
Start
Intake verified, sample invoices, POs and accounting access confirmed.
Weeks 1–2
Extraction, PO matching and mismatch rules built.
Week 3
Accounting system and review queue connected.
Weeks 3–4
100 sample documents processed, accuracy report shared with you.
Week 4
Your review and two rounds of changes.
Go-live
Live, recorded handoff session, support starts.
| Option | Delivery time | Price |
|---|---|---|
| Standard | 20–30 working days | $3,900 |
| Express | 15–25 working days | $4,600 |
| Rush | 10–20 working days | $5,250 |
What you receive at handover
- AI Vendor Invoice Agent configured and running on one intake route (email inbox or upload folder)
- Workflow, prompt and guardrail configuration, including your match and validation rules
- Connection to your agreed source and destination systems, with a human review queue for mismatches
- Test report and accuracy report from 100 sample documents
- Admin guide and a recorded handoff session
- 30 days of post-launch support
Expected benefits and how to measure them
- Can catch overbilling and unreceived goods before money leaves the account
- Helps your team spend less time keying and checking invoices by hand
- Makes it easier to answer vendor status questions quickly
- Mismatches caught before payment
- Count invoices in the review queue each month and note how many your team confirmed as genuine errors.
- Time from invoice receipt to approval
- Compare the average time from receipt to approval in your accounting system for the month before launch and the month after.
- Vendor status queries handled by staff
- Tally status emails your team answered by hand in a sample week before launch, then repeat the tally a month after.
Before you start: Before work starts, record how many invoices you process a month and how long approval takes. Note any overpayments or duplicate payments found recently.
These are things to track, not promised results. Outcomes depend on your data, your team and your market.
Running costs
The build price is one-time. Running it costs roughly $30 to $200 a month in your own accounts, covering OCR and AI usage plus storage, and it scales with how many invoice pages pass through it.
AI usage while we build and test also lands on your own accounts, keeping every provider relationship in your name. This is operational workflow support, not regulated financial, tax or investment advice.
Ask about running costsCustom requirements
If you need something outside the Scope Card, add a note at checkout. You get a written Change Quote, and that work only starts once you accept it. Your original order runs on its normal timeline either way. Larger or bespoke projects go through the Custom AI request form.
Request a custom versionKeep it running
Monthly maintenance covers monitoring, fixes, updates, a monthly health report and change hours, enough to adjust a matching tolerance or add a vendor format. It begins after the 30 days of support, bills monthly, and can be cancelled whenever you choose.
$249/mo (the minimum fee, includes 2 change hours)
Optional. Starts after the post-launch support period. Cancel any month.
How maintenance worksHow this compares
| Do it yourself with a SaaS tool | Hire a custom agency | Upmark Labs | |
|---|---|---|---|
| Price | A PO-matching SaaS charges per document matched, and costs climb with volume | A custom agency quotes after discovery calls | Ours is one fixed price, shown before you buy |
| Scope | A PO-matching SaaS is a general tool you template and tune yourself | An agency agrees scope during the project | Ours is written on the Scope Card before purchase |
| Delivery | A PO-matching SaaS is live once you finish templating each vendor format | An agency usually takes several weeks, set per project | Ours has a fixed delivery time shown before you buy, with faster options |
| Status answers | A PO-matching SaaS shows the match in a dashboard someone has to check | An agency build depends on what was agreed | Ours answers a status question directly when asked |
Questions about this product
Does AI Vendor Invoice Agent pay invoices or route approvals?
No. Its job is the match: invoice against purchase order and receiving record, plus answering vendor status questions. Approval routing and payment runs belong to the AI Accounts Payable Agent. Many teams start with this agent to stop mismatched invoices, then add the payables agent once matching runs smoothly.
How much does it cost to run AI Vendor Invoice Agent each month?
Roughly $30 to $200 a month, covering OCR and AI usage plus storage in your own accounts, not ours. The figure depends on how many invoice pages it processes. Monthly maintenance is separate and optional. It covers monitoring, fixes, a monthly health report and change hours to adjust a matching tolerance or add a vendor format.
How does AI Vendor Invoice Agent handle a price that does not match the PO?
It stops the invoice and flags the mismatch for a person rather than guessing which figure is right. The invoice, the purchase order amount and the receiving record are all shown together, so whoever reviews it can see exactly where the numbers disagree.
Is vendor and pricing data secure with AI Vendor Invoice Agent?
Yes. Every credential and connected account is shared by adding our team as a user or creating a key you control during intake, never by email, and invoice data moves only between the systems you connected. This is operational workflow support, not regulated financial advice, and mismatches always go to a person.
What do we need ready for AI Vendor Invoice Agent?
A set of real vendor invoices with their purchase orders and receiving records, the fields you want matched, your tolerance rules, and access to your accounting system. These are due within 72 hours of ordering, and the delivery clock starts once intake is complete. The delivery panel shows the date and faster options before you buy.
Can AI Vendor Invoice Agent answer a vendor's own status question?
Yes, if you give it access to the inbox or portal where vendor questions arrive. It checks the matched invoice, PO and receiving record, then answers whether an invoice has been received or paid, using only the data it has already matched.
Can I cancel AI Vendor Invoice Agent maintenance?
Yes, in any month. Plans bill monthly with no lock-in, and the build keeps matching invoices either way; cancelling only stops the included monitoring, fixes and hours. The 30 days of post-launch support that come with every order continue regardless of a plan.
Who owns the matching data AI Vendor Invoice Agent produces?
You do. Matched invoice data is written straight into your own accounting system, not stored as ours, and the matching rules built for you belong to your business. If you cancel maintenance, the build keeps matching invoices; you just lose the included monthly changes and support.
Answer 'where's my invoice' before a vendor has to ask twice.
Order AI Vendor Invoice Agent and it matches invoices to your purchase orders and answers vendor status questions, on a delivery date fixed before you pay.
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