AI automatically matches every Purchase Order → Goods Receipt → Vendor Invoice. Catches duplicate payments, price variances, and quantity discrepancies instantly.
What you ordered from the vendor: PO number, vendor name, item descriptions, quantities, agreed prices, total amount.
What you actually received: Receipt date, quantities received, condition notes, receiving personnel signature.
What the vendor is billing you for: Invoice number, invoice date, line items, quantities billed, prices charged, total amount due.
Same invoice paid multiple times (different invoice numbers but same PO, amount, date, vendor).
Example: Invoice #12345 paid on March 5. Invoice #12345-REV (revised invoice) paid again on March 12 for same PO.
Vendor invoice received but no corresponding purchase order found in system.
Example: Vendor invoice references PO #2024-5678, but that PO doesn't exist or was never approved.
Invoice price exceeds PO price by more than acceptable tolerance (usually 5-10%).
Example: PO approved for 100 units @ $50 each. Invoice charges $55 per unit (10% increase) without approval.
Vendor invoicing for more quantity than was actually received.
Example: PO for 100 units. Receiving report confirms 95 units received. Invoice bills for 100 units.
Payment to vendor not on approved vendor master file or without proper authorization.
Example: New vendor "ABC Supplies LLC" submits invoice but is not in approved vendor list and has no authorization paperwork.
Purchase orders, receiving reports, and vendor invoices flow in via email forwarding, accounting system sync, or manual upload. AI extracts all data fields automatically.
For each vendor invoice, AI looks for matching PO and goods receipt. Validates all criteria: vendor, PO number, line items, quantities, prices, amounts.
When match fails or variance exceeds tolerance, AI creates exception and notifies you via email/Slack.
Click exception → see all three documents side-by-side → approve, reject, or request more info. AI handles the rest automatically.
TieStream tests 100% of transactions in real-time. Typical ROI in 1-2 months.