This session focuses on best practices for identifying, investigating, and resolving Received Not Invoiced (RNI), Invoice Not Received (INR) and Matched Not Received (MNR) discrepancies within the procure-to-pay process. Participants will learn how timing differences, receipt and invoice errors, and matching controls impact financial reconciliation and vendor payments. The session provides practical guidance on using key reports, tracing transactions from purchase order to general ledger, and applying preventative controls to reduce aging balances, improve audit readiness, and strengthen reconciliation accuracy.