This session draws on Vistaprint’s SAP S/4HANA production experience and examines how on-stack extensibility was applied using an upgrade-proof, clean core–aligned approach to reshape financial operations and reporting while accelerating access to critical insights. Hear how the company combined Fiori app variants and in-app data model extensions to adapt standard SAP applications for role-specific usage without modifying the core. Explore how they created custom analytical queries that delivered deeper visibility into financial performance and trends using a combination of standard and extended data. Take away proven patterns for evolving SAP S/4HANA using standard extensibility to improve usability, insight, and flexibility.