The Vendor Invoice Says One Amount. The Purchase Order Says Another. Kosh AI Checks the Third Document Before Anyone Approves Payment
A vendor invoice should match two other documents before it's paid. Kosh AI checks all three against each other instead of trusting the invoice alone.
An invoice should reflect what was ordered and what actually arrived, not just what the vendor decided to bill.
The same invoice submitted twice, or a slightly altered duplicate, is one of the most common ways AP teams lose money.
A vendor's statement and your AP ledger should agree on what's outstanding. When they don't, someone's missing an invoice or a payment.
The AP sub-ledger total should match the GL control account every period, with timing differences explained rather than assumed.
Once invoices, POs, and GRNs tie out, a full AP aging and payables report should take minutes to assemble.
Four steps take a vendor invoice from submission to a fully verified payment, with the PO, GRN, and GL checked along the way.
A business paying a handful of vendors and one managing thousands of invoices a month both need the same three-way check, just at a different scale.
Even a small vendor list benefits from automatic three-way matching.
Each subsidiary runs its own three-way match locally, while a controller still sees the combined AP picture across entities.
A shared service center handles AP for multiple business units while each unit still sees its own exceptions clearly.
A newly onboarded vendor is matched under the same three-way rules as every vendor already in the system.
High PO volume reconciles against invoices and goods receipts automatically.
Milestone billing reconciles against purchase orders and site receipts.
High invoice volume from many vendors reconciles without slowing down payment runs.
Supply and equipment invoices reconcile against receiving records across departments.
Kosh AI reconciles thousands of invoices across vendors without manual spreadsheet work.
Kosh AI gives smaller finance teams three-way matching without a dedicated AP hire.
An invoice that's been approved doesn't mean it was actually checked against the order and the receipt. Automating the match changes what actually happens before payment.
An invoice that doesn't match its PO or GRN is flagged before approval, not after the payment goes out.
An invoice that's already been paid is blocked before it's approved a second time.
A missing invoice or unrecorded payment is flagged on both your side and the vendor's.
Sub-ledger and GL balances reconcile automatically, every period.
An AP lead reviews every vendor's open items from one screen instead of a spreadsheet per supplier.
Onboarding a new vendor is a configuration step, not a reason to grow the AP team.
Kosh AI connects directly with all major banks and ERPs, enabling real-time data sync for faster, more accurate reconciliations—no manual uploads, no delays.
A payables total that looks right at a glance can still be hiding vendor accounts that are wrong in opposite directions. Checking every vendor against its source documents catches what a total review won't.
A payables review usually checks whether the total outstanding looks reasonable against budget, not whether each vendor's invoices were actually matched to a PO and goods receipt. Two vendors can be wrong in opposite directions and still leave the total looking fine. Vendor-level reconciliation checks the invoice, the PO, and the GRN against each other instead of trusting that the overall balance tells the whole story.
Duplicate invoices are the clearest example. A near-duplicate submitted a few weeks after the original, with a slightly different reference number, can slip past a total-level review entirely. Left unchecked, that's a direct cash loss rather than a timing difference that resolves itself.
It's the number of vendors and the invoice volume together, more than either alone, that tends to force this issue.
Once invoice volume climbs, eyeballing a three-way match on every bill turns into a backlog within a single cycle.
Each vendor's statement needs checking against your ledger on its own terms.
Near-duplicate invoices need catching before they're approved, not after they're paid.
High PO volume needs a reliable three-way check at every stage of approval.
Vendor-level matching is what actually shortens AP close time, not more hours worked.
Onboarding a new vendor should plug into the existing matching rules, not start a fresh manual process.
This tool is built to catch mismatched invoices and duplicate payments fast. The vendor negotiations and procurement policy behind those invoices are still your team's call.
A payables total can look fine while two vendor invoices inside it are off in opposite directions — matching at the line level is what catches that.
A near-duplicate invoice is flagged before it's approved for a second payment.
Vendor records and purchase order data need to be configured correctly before matching runs well.
Matching works best when POs and goods receipts are raised consistently in the first place.
Accounts payable reconciliation software matches vendor invoices against purchase orders and goods receipt notes, and checks the AP sub-ledger against the GL control account, rather than approving a payment based on the invoice alone. A finance team working with many vendors ends up with invoices, POs, and receipts arriving at different times, and a payables total that looks reasonable can still be hiding individual vendor accounts that are badly wrong in opposite directions. Kosh AI pulls in invoices, purchase orders, and goods receipts automatically, matches them vendor by vendor, and separates a genuine mismatch from a timing difference that will resolve on its own.
Run one AP cycle through a manual three-way check, then compare it to one that matches every invoice against its PO and GRN automatically. The duplicates caught alone tell the story.
| Feature | Automated AP Reconciliation | Manual AP Reconciliation |
|---|---|---|
| Three-Way Matching | Every invoice matched against its PO and GRN automatically. | Teams usually sample invoices for a three-way check, not every one. |
| Duplicate Detection | Near-duplicate invoices flagged before approval. | Duplicate payments are often caught only during a later audit. |
| Vendor Statement Matching | Vendor statements checked against your ledger automatically. | Statement reviews happen occasionally, usually when a vendor complains. |
| Multi-Entity Coverage | A controller opens one report and sees every entity's AP reconciled side by side. | Getting that same picture usually means chasing down a separate analyst's numbers per entity. |
| Sub-Ledger-to-GL Accuracy | AP sub-ledger matched against the GL automatically, every period. | Sub-ledger-to-GL ties are often done once, right before close. |
| Adding New Vendors | A new vendor is matched under the same three-way rules as every vendor already set up. | A new vendor usually means someone builds that vendor's matching checks from a blank sheet. |
Connect your procurement system and ERP inside Kosh AI, and the next invoice starts getting matched against its PO and GRN automatically.
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Bring a recent vendor statement to the call. We'll walk through it live and show you which lines are timing differences and which are real discrepancies.
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