Invoice Discrepancy Finder
PROAutomatically match supplier invoices to Purchase Orders and goods receipts using 3-way matching, detect price/quantity discrepancies, flag duplicates, and route exceptions for approval.
Example Usage
Process this invoice from Acme Supplies (Invoice #AS-48392, $12,500, dated Dec 15, 2025) against PO #PO-2025-1847 (authorized $12,000 for 250 units @ $48/unit) and Goods Receipt GRN-2025-5521 (received 250 units on Dec 14). Flag any discrepancies exceeding ±2% price or ±1 unit quantity tolerance and route exceptions to the buyer.
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Suggested Customization
| Description | Default | Your Value |
|---|---|---|
| Maximum allowable percentage difference between invoice unit price and PO price before flagging exception | 2% | |
| Maximum allowable unit difference between invoice quantity and received quantity | 1 unit | |
| Allowable variance in tax calculations to account for rounding differences | 0.5% | |
| Invoices at or above this amount require manual approval regardless of match result | $50,000 | |
| Invoice amounts within this percentage considered potential duplicate match | 0.5% | |
| Auto-escalate unresolved exceptions to manager after this period | 2 days |
Research Sources
This skill was built using research from these authoritative sources:
- What is invoice matching? Examples and best practices Comprehensive guide covering 2-way and 3-way matching workflows, process steps, and discrepancy resolution strategies for AP teams
- 2-Way and 3-Way Matching in Accounts Payable Explained Clear explanation of matching types, document comparison criteria, tolerance limits, and how payment holds work for discrepancies
- How to Handle Discrepancies between PO and Invoices Discusses why PO-invoice mismatches occur, two-way matching process, and benefits of improved matching accuracy
- Guide to 3-Way Invoice Matching in Accounts Payable In-depth 3-way matching explanation, comparison with 2-way, verification steps for quantities/prices/terms, and fraud prevention benefits
- Invoice OCR line item extraction for accurate data Technical overview of OCR + AI data extraction, line-item parsing, API integration patterns, and accuracy benchmarks up to 99%
- Automated Invoice Data Extraction using LLM and OCR Academic research on hybrid OCR + LLM architectures for invoice extraction, handling variant layouts and complex documents
- 15 Best Invoice Reconciliation Software Solutions 2025 Comparative analysis of enterprise tools including KlearStack, Beanworks, Xero with features, accuracy rates, and integration capabilities
- Invoice Matching Software - Automated 3-Way Matching Deep dive into 3-way matching engines, PO balance tracking, anomaly detection, and AI-driven learning improvements
- Looking to optimize our Accounts Payable processes Real-world Reddit discussion on AP automation challenges, vendor-specific issues, AI tagging, duplicate detection, and practical solutions
- Can't keep up with invoice processing - Automation solutions Reddit thread sharing DIY automation stack with email integration, OCR, AI extraction, and QuickBooks API achieving 10-second processing per invoice