SAP S/4HANA Transformation with Brownfield and AI
Migrate efficiently into the future
The migration to SAP S/4HANA is more than just a must-have for IT decision-makers before 2027. We show why the brownfield approach, combined with Generative AI, is the key to efficiency.
The Most Important Facts in Brief
- Investment protection: The brownfield approach (system conversion) preserves your proven processes and data histories while we renew the platform technologically.
- AI acceleration: We use Generative AI to automatically adapt custom code and generate test data, which massively shortens the project duration.
- Industrialization: With the SAP S/4HANA Conversion Factory, we standardize the technical migration steps to minimize risks and reduce costs.
Setting the Strategic Course: Why We Are Focusing on Brownfields
The discussion about the right migration path is often simplified: Greenfield for innovation, Brownfield for preservation. We take a more differentiated view. For many of our existing customers, the brownfield approach is the logical, data-driven choice.
Definition: By the brownfield approach, we mean a technical system conversion in which we retain your existing system history and proven configurations, then migrate them to the new SAP S/4HANA platform and optimize them in operation.
Especially for companies deeply integrated into supply chains, such as many of our customers, a radical new start (greenfield) entails unnecessary operational risk. A failure in just-in-sequence delivery could cause production downtime for OEMs. With Brownfield, we get your "secret sauce" - the specific logistics processes - and accelerate them using HANA technology.
Efficiency Through Industrialization: Our Conversion Factory
We don't see SAP S/4HANA projects as purely manual work. To manage complexity, we rely on SAP S/4HANA Conversion Factory. This approach industrializes the migration process. We follow a strict choreography:
1. Preparation
Automated checks check the compatibility of your system (Readiness Check).
2. Conversion
The Software Update Manager (SUM) migrates the database and software in one step, which drastically reduces downtime.
3. Optimization
After the technical changeover, we adapt functions and activate new interfaces such as SAP Fiori.
Generative AI: The Turbocharger for Your Transformation
The integration of Generative AI (GenAI) will be the dominant topic in the coming years. We use GenAI not only as a feature in the target system, but also as a tool to make the migration itself more secure - we call this "AI for SAP".
One of the biggest hurdles in the brownfield approach is old, customer-specific program code (custom code). This is where we rely on AI-supported code remediation. Large language models analyze your ABAP code, explain functions, and automatically suggest refactoring measures.
Studies show that GenAI can reduce the time required for code adaptations by 30 to 40 percent. This massively reduces your migration costs. (Source)
In addition, GenAI solves bottlenecks in testing. We generate synthetic test data that is statistically identical to real data but does not contain any sensitive information. In this way, we protect data privacy and increase test quality.
The Human Factor: Change Management
We know that SAP S/4HANA projects are equal parts IT and organizational projects. Technologically, little seems to change with the brownfield approach, but for users, the change from the "gray" SAP GUI to the modern tiles of SAP Fiori is almost like a culture shock.
We support this change with an architecture based on four pillars: it ranges from the "Change Impact Analysis" to the "Change Cockpit", which monitors progress. This actively involves your employees in the change process.
Conclusion
The transition is unavoidable, but with the right strategy it is an opportunity for realignment. We combine the stability of the brownfield approach with the innovative power of GenAI and the scalability of our Conversion Factory. Is your system ready? We analyze your path - clearly and individually.
Tip: Our checklist offers you a tried-and-tested guide to all key areas of action for SAP S/4HANA migration - from target definition and architecture issues through to change management and compliance. It is supplemented by a maturity model that helps you objectively assess your company's status quo and derive concrete measures. A compact guide for anyone who not only wants to introduce SAP S/4HANA, but also successfully anchor it.
Frequently Asked Questions and Answers About the SAP S/4HANA Transformation
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What is the difference between brownfield and greenfield?
With the greenfield approach, we build a new system on a "greenfield site" with standard processes. With the brownfield approach, we perform a technical upgrade of your existing system, using your data history and individual customizations ("secret sauce").
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How does AI help with SAP S/4HANA migration?
We use Generative AI to analyze and correct old program code (refactoring) automatically. We also generate synthetic test data to safely test processes without violating data protection guidelines.
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Why is the Universal Journal important?
The Universal Journal (table ACDOCA) is the central storage location for all financial data in SAP S/4HANA. It eliminates the separation between financial accounting and controlling, rendering reconciliation processes superfluous and enabling real-time reporting.
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What are the benefits of the SAP S/4HANA Conversion Factory?
Our SAP S/4HANA Conversion Factory industrializes the migration process. Recurring technical steps are standardized and automated. This reduces risks, optimizes costs, and significantly shortens your project duration.
Written by
As Head of Strategic Business Development, Johannes Fuhrmann manages the portfolio and product development for the manufacturing industry, focusing on digital twins and data ecosystems. He previously worked at Deloitte and VELUX. He holds an MSc in Information Systems Management (University of Warwick) and a B.A. from HAW Hamburg.