SAP S/4HANA Cloud Solution: The Importance of Clean Core for Upgrade Stability and Efficiency

The article discusses the importance of maintaining a "clean core" in SAP S/4HANA Cloud Private Edition, which means the solution is up to date, documented, unmodified, consistent, efficient, and has custom extensions decoupled from SAP source code. The clean core concept has multiple dimensions, including business processes, extensibility, data, integration, and operations. The article also introduces the Clean Core Level Concept, a new model that categorizes extensions into four distinct levels (A, B, C, and D) based on their architectural integrity, upgrade safety, and alignment with clean core principles. The fundamental principles of Clean Core remain essential, with a focus on decoupling extensions from standard SAP code to ensure upgrade stability.