This guide outlines the Bring Your Own Identity (BYOI) initiative by SAP, which allows customers to integrate their existing Identity and Access Management (IAM) solutions into SAP's ecosystem. The document describes the benefits of BYOI for both companies and employees, including streamlined user management, enhanced security, cost savings, and improved user experience. It details the implementation strategy, including a roadmap and timeline for transitioning to BYOI, and highlights the technical overview, including BYOI layers and flavors. The guide emphasizes the importance of a harmonized identity management experience across SAP products and services, enabling users to manage multiple identities seamlessly. Additionally, it discusses the future hybrid scenario of user management, comparing the classic S-User Management with the modern BYOI approach. The document concludes with an interactive session section, inviting feedback and questions from users regarding the BYOI implementation.