3-Way PO–Invoice–GRN Match
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Procurement & Supply Chain
3-Way PO–Invoice–GRN Match
PO, goods received and invoice matched automatically, pay only what’s right.
Automatically matches purchase orders, goods-receipt notes (GRN) and vendor invoices on quantity, rate and tax, holding mismatches for review so you never overpay or pay for what you didn’t receive.
90%+
invoices auto-matched
₹ lakhs
overbilling prevented
Days → hours
invoice approval
The impact
Stops over-payments, rate creep and duplicate invoices, and speeds up clean payables.
90%+
invoices auto-matched
₹ lakhs
overbilling prevented
Days → hours
invoice approval
Who it's for
- Manufacturers with high vendor-invoice volume
- Accounts teams approving invoices by manual checking
- Firms suffering rate creep and short-supply overbilling
- Businesses needing duplicate-invoice protection
What you get
- Automated PO–GRN–invoice three-way match
- OCR of PDF/scanned vendor invoices
- Exception flags with rupee impact
- Tolerance bands for trivial variances
- Verified-invoice write-back to Tally/ERP with audit trail
The pipeline
How it works, end to end.
Every step is built, benchmarked, and wired into your stack. Here is exactly what happens.
Collect the three docs
PO, GRN and the vendor invoice (incl. OCR of PDF invoices) are gathered for each receipt.
Match
The AI compares quantity received vs ordered vs billed, and rate/tax billed vs PO rate, within tolerance.
Flag exceptions
Short/excess supply, rate variance, missing GRN or duplicate invoice are flagged with the rupee impact.
Route for approval
Clean matches go straight to the payables queue; exceptions route to purchase/stores with context.
Write-back
On approval, the verified invoice posts to Tally/ERP for payment scheduling.
Human checkpoint
Buyers/accounts clear exceptions; payment never releases on an unmatched invoice.
Collect the three docs
PO, GRN and the vendor invoice (incl. OCR of PDF invoices) are gathered for each receipt.
Match
The AI compares quantity received vs ordered vs billed, and rate/tax billed vs PO rate, within tolerance.
Flag exceptions
Short/excess supply, rate variance, missing GRN or duplicate invoice are flagged with the rupee impact.
Route for approval
Clean matches go straight to the payables queue; exceptions route to purchase/stores with context.
Write-back
On approval, the verified invoice posts to Tally/ERP for payment scheduling.
Human checkpoint
Buyers/accounts clear exceptions; payment never releases on an unmatched invoice.
Under the hood
The data flow, wired into your tools.
Reads
- Purchase orders
- Goods-receipt notes (GRN)
- Vendor invoices (incl. OCR of PDFs)
- PO rates and tax masters
Produces
- Auto-matched clean invoices to payables
- Exception queue with rupee impact
- Duplicate-invoice alerts
- Audit trail of matches and overrides
Before & after
What changes once it ships.
Invoices checked by hand against PO and GRN
90%+ auto-matched; only exceptions reviewed
Rate creep and short supply billed in full slip through
Every variance flagged with its rupee impact
Duplicate invoices cause accidental double payment
Duplicates caught before payment releases
Why it matters
The business case
Without a disciplined three-way match, manufacturers quietly overpay through rate creep, short supply billed in full, and duplicate invoices, typically ₹ lakhs a year that never shows up as a single obvious leak. Manual matching is also slow, so good vendors wait and the team burns hours on payables. Auto-matching 90%+ of invoices and holding only the exceptions stops the overpayment, speeds clean payments and hands the auditor a tight trail, which makes it an easy yes for any finance head.
FAQ
3-Way PO–Invoice–GRN Match: your questions, answered.
What is three-way matching, simply?+
It’s checking that the purchase order, the goods actually received (GRN), and the vendor’s invoice all agree on quantity and rate before you pay. We automate the check so only clean invoices reach payment.
Can it read PDF and scanned vendor invoices?+
Yes. It OCRs PDF and scanned invoices to extract line items, quantity, rate and tax, then matches them against the PO and GRN automatically.
Does it allow tolerances for minor differences?+
Yes. You set tolerance bands (e.g. small rounding or freight differences) so trivial variances auto-pass and only meaningful mismatches get held for review.
Will it catch duplicate invoices from vendors?+
Yes. It detects duplicate invoice numbers, amounts and dates across the ledger, a common source of accidental double payment.
Does it post into Tally after matching?+
On approval it can write the verified purchase invoice into Tally/ERP for payment scheduling, with a full audit trail of the match and any overrides.
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