Clean Core keeps your S/4HANA digital core close to standard so upgrades are routine, AI is ready to switch on, and audits stop being a fire drill. We assess, remediate, and govern.
Clean Core is SAP's design principle for S/4HANA and RISE: keep the standard core untouched, move extensions to side-by-side BTP, and integrate through released APIs. The payoff is real — quarterly cloud updates apply without breaking, Joule and embedded AI work out of the box, and license/audit risk drops. But most landscapes are the opposite of clean: years of in-core modifications, Z-tables, and unreleased APIs. Closing that gap is exactly what we do.
100+
Engagements Delivered
40-60%
Faster Migrations
Zero
Downtime Migrations
15+
Years SAP Experience
In-core enhancements and modified standard objects turn each support pack or RISE update into a regression-testing project. The more you customized the core, the slower and riskier every change becomes.
Embedded AI and Joule assume standard data structures and released APIs. Custom fields buried in the core and direct table access leave the most valuable new capabilities stranded.
Integrations built on direct table reads or unreleased function modules break silently when SAP changes the underlying model — a constant source of incidents in cloud and RISE landscapes.
Indirect access, unmanaged custom objects, and undocumented extensions create compliance drift that surfaces — expensively — during SAP license audits.
With extensions on BTP and the core kept standard, S/4HANA and RISE updates apply cleanly. Regression scope shrinks from months to days.
A clean, standard core is the prerequisite for Joule, embedded AI, and Business AI scenarios — you stop leaving the roadmap on the table.
Less custom code to maintain, fewer break-fix incidents from SAP changes, and faster projects compound into materially lower run cost.
Released APIs, governed extensions, and a documented custom-code inventory turn license and security audits into a formality.
Comprehensive services tailored to your SAP landscape
Measure your clean-core maturity across code, data, integration, and process. Quantify the gap with SAP ATC, Custom Code Migration, and Readiness Check.
Classify every custom object: keep, retire, replace with standard, or relocate to BTP. Remediate modifications and direct table access to released APIs.
Move custom apps and logic to BTP (ABAP Cloud, CAP, SAP Build) so the core stays standard while your differentiation lives where it can be upgraded independently.
Replace developer modifications with in-app key-user tools — custom fields, logic, and forms that survive every upgrade by design.
Re-platform integrations onto released APIs and events via Integration Suite, eliminating the unreleased-interface breakage that plagues cloud landscapes.
Establish extension guidelines, an approval workflow, and a custom-code register so the core stays clean after we leave — not just on go-live day.
A proven methodology refined across 100+ engagements
Run clean-core maturity analysis across custom code, data model, integrations, and process. Produce a scored gap report and remediation backlog.
Triage every custom object: keep as-is, retire as dead code, replace with standard S/4HANA, or relocate to side-by-side BTP.
Fix in-core modifications, move extensions to BTP, swap direct table access for released APIs, and convert developer changes to key-user extensibility.
Stand up extension governance, coding standards, and a custom-code register so new development stays clean by default.
| Dimension | Dirty Core | Clean Core |
|---|---|---|
| Upgrade / RISE update effort | Months of regression testing per cycle | Routine — applies in days |
| AI & Joule readiness | Blocked by custom fields & unreleased APIs | Ready out of the box |
| Integration stability | Breaks when SAP changes tables | Released APIs, change-safe |
| Custom code to maintain | Millions of lines, growing | Minimal, governed, on BTP |
| Audit & license risk | High — undocumented drift | Low — documented & released |
| Total cost of ownership | High run cost, slow projects | Lower run cost, faster delivery |
Often implemented together for maximum impact
Modernize legacy SAP systems. Custom code remediation, Clean Core architecture, ABAP modernization, and technical debt reduction.
Learn moreSAP Business Technology Platform consulting. Integration Suite, Cloud Foundry, Kyma, ABAP Cloud development, and multi-cloud BTP architecture.
Learn moreECC to S/4HANA migration consulting: brownfield conversion, greenfield, selective data transition, and custom-code remediation — before the 2027 deadline.
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