Automate the most time-consuming part of accounts payable. Match invoices to POs instantly, catch discrepancies before payment, and close the books faster. Learn more about procure-to-pay.
Opstream’s AI extracts line-item data from vendor invoices the moment they arrive, then automatically matches each line against your purchase orders and goods receipts. When everything aligns, the invoice moves straight to payment approval without human intervention.
When discrepancies surface, the system flags the specific mismatch, provides full context (the PO terms, what was received, what was billed), and routes the exception to the right reviewer based on your approval rules.
The result: AP teams stop manually cross-checking spreadsheets and start focusing on the exceptions that actually need attention.


Manual data entry is where invoice errors begin. Opstream uses AI-powered extraction to pull structured data from invoices in any format, whether PDF, scanned image, or electronic interchange.
The extraction layer captures vendor name, invoice number, line items, quantities, unit prices, tax amounts, and payment terms with high accuracy. Extracted data feeds directly into the matching engine, eliminating the re-keying bottleneck that slows down AP teams processing hundreds of invoices per month.
Every extracted field is auditable. Your team can verify the AI’s read against the original document at any time, maintaining the control and transparency your auditors expect.
Three-way matching, comparing the purchase order, goods receipt, and invoice, is the gold standard for AP controls. But doing it manually at scale creates a bottleneck that delays vendor payments and strains team bandwidth.
Opstream automates the full three-way match. The system pulls PO data from your ERP, confirms receipt against your receiving records, and validates the invoice against both. Tolerances are configurable: set acceptable variance thresholds by amount, percentage, or category so minor rounding differences auto-resolve while material discrepancies trigger review.
The matching engine handles the complexity that trips up simpler tools: partial quantity deliveries, multi-line invoices spanning multiple POs, and split shipments where goods arrive in stages.


Invoice reconciliation only works if it’s connected to your systems of record. Opstream integrates with NetSuite, SAP, Microsoft Dynamics, and other ERPs to create a bidirectional data flow:
Inbound: PO data, vendor master records, and budget allocations flow from your ERP into Opstream
Outbound: Reconciled invoices, approval statuses, and payment recommendations push back to your ERP
The sync is bidirectional and continuous. When a PO is amended in NetSuite, the updated terms, quantities, and pricing propagate into Opstream so the matching engine always validates against current data.
Beyond matching individual invoices, Opstream surfaces patterns across your entire invoice stream. The analytics layer identifies:
Spend anomalies: sudden spikes in vendor billing, off-contract pricing, or unusual payment frequency
Process bottlenecks: where invoices stall in approval queues and why
Compliance gaps: invoices processed without PO backing, or payments made outside policy thresholds
Dashboards give AP managers real-time visibility into reconciliation status, exception rates, and cycle times. Ask Opstream natural-language questions about your invoice data and get instant answers without building custom reports.

Fiverr’s procurement team was spending hours each week manually matching invoices against purchase orders across multiple business units. With Opstream, they automated the reconciliation workflow, reducing manual AP effort and gaining real-time visibility into payment obligations across the organization.
Read the case study ›“Opstream gave us the visibility and automation we needed to move from reactive invoice processing to proactive spend control.”
9.7/10 ROI Procurement Platform
Time Saving
Reduce manual matching by up to 80%
AP teams stop cross-checking spreadsheets and focus on exceptions that actually need attention.
Spend Control
Catch discrepancies before payment
Pricing mismatches, duplicate invoices, and unauthorized charges get flagged before they become overpayments.
Risk Reduction
Complete audit trail, always
Every match, exception, and approval is logged for SOX, DORA, and internal compliance requirements.
What is invoice reconciliation?
Invoice reconciliation is the process of matching vendor invoices against purchase orders (POs) and goods receipts to verify accuracy before approving payment. It ensures quantities, pricing, and terms align across all documents, preventing overpayments, duplicate charges, and unauthorized spend.
How does automated invoice reconciliation work?
Automated invoice reconciliation uses AI to extract invoice data, then matches it against corresponding POs and receiving records. The system flags discrepancies instantly, routes exceptions to the right stakeholder, and auto-approves invoices that pass validation rules, reducing manual AP work by up to 80%.
What is three-way matching in accounts payable?
Three-way matching compares three documents: the purchase order (what was ordered), the goods receipt (what was received), and the vendor invoice (what was billed). When all three align on quantities, pricing, and terms, the invoice is approved for payment. Discrepancies trigger exception workflows for review.
How does Opstream integrate with ERP systems?
Opstream connects to ERPs like NetSuite, SAP, and Microsoft Dynamics to pull PO data and push reconciled invoice records back into your financial system. This bidirectional sync eliminates double-entry, keeps records consistent, and ensures your ERP reflects validated payment obligations in real time.
What types of discrepancies does Opstream catch?
Opstream’s AI matching engine catches pricing mismatches, quantity variances, duplicate invoices, unauthorized charges, missing PO references, and currency or tax calculation errors. Each discrepancy triggers a configurable workflow that routes to the appropriate reviewer with full context.
How does invoice reconciliation reduce fraud risk?
By requiring every invoice to match against an approved PO and verified goods receipt, automated reconciliation blocks fake invoices, prevents duplicate payments, and catches unauthorized price changes. The complete audit trail provides compliance evidence for SOX, DORA, and internal controls.
See how Opstream’s AI-powered reconciliation eliminates the AP bottleneck. Schedule a demo to see automated three-way matching in action.
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