CleanCore

Every S/4HANA project eventually faces the same decision point: do we extend the SAP standard using clean core principles, or do we use a classic modification approach? The wrong choice doesn’t just create technical debt — it can block your next upgrade, increase your ATC check failure rate, and make the entire codebase harder to […]

The new Clean Core Level Concept replaces the old 3-tier model with a pragmatic maturity framework for SAP S/4HANA extensibility. Learn what each level means and how to navigate your cloud transformation.

The ABAP Test Cockpit (ATC) is your automated gatekeeper for clean core compliance. Learn how to set up central ATC checks, configure clean core-specific validations, and integrate governance into your transport pipeline.

The ABAP Extensibility Guide for S/4HANA Cloud has evolved from the 3-tier model to the Clean Core Level Concept. Learn about key user extensibility, ABAP Cloud on-stack development, side-by-side BTP extensions, and how to choose the right path.

Clean code alone is not enough — clean data is the second pillar of a healthy SAP S/4HANA landscape. Learn about the RISE with SAP Data Principle, data archiving, ILM retention management, and how to keep your system lean throughout its lifecycle.