Following the transition from SAP ECC to S/4HANA, the spotlight often shifts from go-live execution to long-term sustainability. Without a strong foundation in data governance and cleansing, organisations risk data degradation, inconsistent reporting, and diminished user trust — undermining the value of their new system. Aspen Business Solutions Inc. (The Gokongwei Group Shared Services), in collaboration with a business unit of JG Summit Holdings Inc., tackled this challenge by embedding continuous data quality management and governance into business-as-usual operations. With clear data ownership roles and accountability shifted to business users, they ensured their S/4HANA environment stayed reliable, scalable, and aligned with evolving needs. This real-world case study shows how post-migration governance can preserve and amplify the benefits of an S/4HANA transformation. Key Takeaways: - Establish Sustainable Data Governance: Learn how to implement practical frameworks that maintain data quality and accountability long after go-live. - Empower Business Users: Discover strategies to shift data ownership to the business, reducing reliance on technical teams and improving operational agility. - Maximise Long-Term Value from S/4HANA: Gain insights into sustaining system performance and aligning SAP with evolving business needs post-migration.