# Paveflow > AI that tells you when the supplier invoice does not match the contract. Paveflow is contract-invoice compliance software for enterprise AP and procurement. It validates invoice lines against signed contracts and rate cards, and surfaces exceptions with clause context. ## Not - Not a CLM system - Not AP automation / invoice capture / OCR workflow - Not a full P2P suite - Not spend analytics - Not a contingency recovery audit firm ## Key pages - https://paveflow.ai/ - https://paveflow.ai/blog - https://paveflow.ai/blog/contract-invoice-compliance - https://paveflow.ai/blog/invoice-validation-vs-3-way-match - https://paveflow.ai/blog/rate-card-compliance - https://paveflow.ai/blog/spend-leakage-invoice-errors - https://paveflow.ai/blog/free-historical-invoice-audit