SAP Technology Insights
Clean Core in Practice: Extending S/4HANA with BTP
June 26, 2026 · 6 min read · CoreSAP Talent Insights
Why side-by-side extensions on SAP BTP are becoming the default for new S/4HANA customizations.
Clean core is SAP’s guidance to keep the digital core as close to standard as possible, so upgrades remain fast and low risk.
In practice that means building new extensions on SAP BTP using released APIs and events, and using on-stack extensibility only through released objects. The ABAP RESTful Application Programming model and CAP are the primary tools.
Teams that adopt clean core early report shorter upgrade cycles and fewer regression issues — a compelling business case for the additional design discipline.
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