This customer case study explores the critical decisions behind a regional SAP S/4HANA migration completed in 18 months and the ongoing considerations as the transformation continues across the globe. Attendees will learn how ECC consolidation, phased regional rollout planning, data cleanup, archiving, business partner migration, and other decisions helped reduce risk across a complex global landscape with hundreds of satellite systems. The session will also examine how parallel adoption of RISE, Business Data Cloud, and AI is shaping the next stage of modernization, with practical lessons for organizations planning multi-year S/4HANA transformation journeys.