This guide provides a strategic roadmap for financial institutions aiming to enhance payment security through Confirmation of Payee (CoP) implementation. Highlighting its pivotal role in combatting APP fraud, the guide outlines key steps: building a business case, engaging crucial bank teams, and deciding on a build versus buy strategy. It advocates an API-first approach for seamless integration, emphasizes data integrity through cleansing, and underscores the importance of clear communication channels and proactive customer education.