This report provides a comprehensive overview of SAP S/4HANA, the latest industry package from SAP, leveraging HANA as its core query language. It begins with a historical overview of SAP and its evolution, highlighting the advantages of S/4HANA over its predecessors, including SAP ERP FICO, and discusses the differences between them. The report delves into the challenges of using Fiori apps compared to traditional t-codes. It outlines the benefits of SAP S/4HANA for businesses, emphasizing financial planning, accounting, financial close, and treasury management. Furthermore, the report presents case studies of companies that have migrated to SAP S/4HANA, analyzing the issues they faced during the implementation process. The report concludes with a discussion of the key advantages of SAP S/4HANA, such as real-time reporting, fraud prevention, and financial reporting, and highlights the critical role of understanding functional differences for IT representatives from existing SAP FICO customers to ensure the biggest economic yield. The report emphasizes the features of SAP S/4HANA Finance, including its ability to combine financial and managerial accounting, accelerate reconciliation, and provide real-time information for comprehensive financial analysis.