Clean Core is SAP's architectural principle: keep the S/4HANA core as close to standard as possible. Custom extensions live on BTP (side-by-side), connected via APIs. This keeps the core upgradeable and reduces technical debt.

How much custom code can be removed?

In our experience, 40-60% of custom ABAP code in a typical SAP system is dead code (never executed). Another 20-30% can be replaced with standard S/4HANA functionality. The remaining 10-30% is genuinely unique business logic.

Should we clean code before or during S/4HANA migration?

Before. Starting code remediation 6-12 months before migration reduces risk and cost. Migrating dirty code means more testing, more bugs, and more rework on the S/4HANA side.

What tools do you use for code analysis?

SAP ATC (ABAP Test Cockpit), SAP Readiness Check, CAST for SAP, and AI-powered tools for deeper analysis. We combine automated scanning with manual expert review for complex code.

Modernize Legacy SAP: Clean Core Architecture

Reduce 2M lines of custom code to 200K. Clean Core architecture, API-first development, and AI-powered code remediation.

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Most SAP systems accumulate massive technical debt over 10-20 years: millions of lines of custom ABAP code, hundreds of Z-tables, and undocumented modifications. This debt makes S/4HANA migration slower, riskier, and more expensive. Clean Core is SAP's answer: minimize custom code in the core, move extensions to BTP, and embrace API-first development.

What We Offer

Comprehensive services tailored to your SAP landscape

Custom Code Scanning

Automated ABAP analysis with SAP ATC, CAST, and AI tools. Identify dead code, complexity hotspots, and simplification candidates.

Code Remediation

Fix S/4HANA incompatibilities, refactor procedural ABAP to OOP, and align with simplification database items.

Clean Core Implementation

Move extensions to BTP side-by-side. API-first development, extension governance framework, and custom code minimization.

Z-Table Rationalization

Analyze, consolidate, and rationalize custom Z-tables. Remove redundancy and align with S/4HANA data model.

Dead Code Removal

Identify and safely remove unused custom programs, transactions, and objects. Reduce codebase by 40-60%.

AI-Powered Documentation

Generate technical documentation for undocumented custom code using generative AI. Knowledge preservation at scale.

How We Work

A proven methodology refined across 100+ engagements

Code Scanning

Run automated analysis on your entire ABAP codebase. Generate complexity reports, dead code lists, and S/4HANA compatibility scores.

Remediation Planning

Prioritize code changes by impact. Identify what to keep, refactor, move to BTP, or remove.

Execution

Fix compatibility issues, refactor critical code, move extensions to BTP, and remove dead code.

Governance

Establish Clean Core governance framework, coding standards, and extension guidelines for ongoing compliance.

Frequently Asked Questions

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