This issue features a study on SAP Fiori adoption within S/4HANA transformation projects, highlighting the strategic role of user experience in enterprise modernization. The paper examines the limitations of the traditional SAP GUI and presents Fiori as a role-based, device-independent framework designed to simplify business processes and improve usability. It explores real challenges such as skill gaps, user resistance, architectural decisions, and clean-core compliance. Supported by industry cases and performance metrics, the study evaluates measurable gains in task efficiency, error reduction, and training effort. Overall, it positions Fiori adoption as a practical and strategic driver of productivity, usability, and sustainable digital transformation.