SAP Logo
SAP S/4HANA System Conversion

Move to SAP S/4HANA with the Brownfield Approach

Perhaps you already have an IT landscape that meets the requirements of your business. You can still move to SAP S/4HANA without changing your structure and processes. This method will ensure a smooth transition on fixed schedule and budget.

What Is a System Conversion?

With the System Conversion method, all data on an existing SAP Business Suite system are migrated to SAP S/4HANA. Also known as the “Brownfield Approach”, this method enables remodeling the IT landscape. Rather than eliminating the whole structure and starting from scratch, an ERP system (for instance SAP ECC) is renovated in a large-scale on SAP S/4HANA. This means your system comprises both your previous processes that you need and new qualities that come with SAP S/4HANA.

Migrating a system may not always be easy. Therefore, NTT DATA Business Solutions offers SAP-certified Conversion Factory that enables an efficient and smooth conversion. This solution makes sure to maintain individual processes and launch new ones exactly in the speed you need, which means transition to SAP S/4HANA without any surprises in the schedule or budget.

Why Should I Choose a System Conversion?

1. Because Business Processes Are Maintained.

You can move to SAP S/4HANA while keeping your current processes that already suit your needs, provide reliable data, and work best for your daily business routine. Thus, no risks are allowed during the transition period, which means considerable savings in time and money.

2. Because Only Limited Retraining Is Required.

As System Conversion method maintains business processes and causes minor changes only, your teams do not need detailed and long trainings on the system. Processes and workflows remain the same, while benefitting from improvements such as higher speed, more user-friendly UX, and advantages for future innovations. The system can be used with minimum instructions, ensuring time and cost savings.

3. Because It Enables Time and Money Savings.

The System Conversion method employs the “big bang”, which means a fast transition from the legacy system to SAP S/4HANA. Since there are no parallel systems running simultaneously during the preparation phase, support costs and time are saved.

Converting the System within the Limits of the Budget and Schedule

With our unique Conversion Factory approach, you can accelerate and improve the System Conversion process, which allows a conversion within the schedule and budget.

Details of this SAP-certified approach are given in our blog article.

What Does Conversion Factory offer?

  • Transition to SAP S/4HANA in 22+ weeks
  • Proven implementation success with 45+ conversions and 200+ experts
  • Use of PoC* to evaluate SAP S/4HANA for your business
  • Cloud-based implementation by our Managed Cloud Service

*PoC = Proof of Concept or sandbox conversion. It allows testing the system for your business needs to reveal how it “feels” to have SAP S/4HANA.

Is the Conversion Factory Certified by SAP?

The full name of Conversion Factory is “SAP Qualified Partner-Packaged Solution it.S/4HANA conversionR2R”. The solution is pre-configured, and it employs accelerators, methodologies, and tailor-made services to enable rapid time-to-value, fewer risks and a foreseeable outcome.

Get More Information

Success Stories of Conversion Factory in Other Companies

What Should I Consider Before Choosing a System Conversion?

The main stages of a System Conversion are given in this flow chart. Yet this is not enough to make a sound decision. You need to know:

What benefits a System Conversion can bring?

What should be taken into consideration?

Download a more detailed version of this flow chart and get arguments for your internal decision-making process.


Get All Benefits & Considerations


System Conversion at Other Companies

Belagricola Success Case – S/4HANA, MDG e GUEPARDO

Belagrícola is one of the largest provider of solutions for farmers, with a technology-based portfolio of products and services. Considered as one of the biggest players in national agribusiness, it expanded its activities to the international market, always reinforcing its DNA: innovation, passion

Castrolanda Success Case – SAP S/4HANA and GUEPARDO Tax Software

Castrolanda, one of the largest agribusiness companies in Paraná, is a Cooperative headquartered in Castro, founded in 1951. The Cooperative has business units divided into Operations (agricultural, meat, milk, potato, energy, and administration) and Industrial ( meat, milk, and potatoes).

Demarest Advogados implements SAP S/4HANA, GUEPARDO and AMS Suite

Aware of the latest technology, Demarest Advogados implements SAP S/4HANA and revolutionizes tax management with the GUEPARDO Tax Software

Toyota Tsusho

Toyota Tsusho is the trading arm of the Toyota Group. It enriches society by creating value by the company as Metals; Global Production Parts; Logistics


As requirements for qualitative Master Data Management increased at Jowat due to business growth, the company decided for NTT DATA Business Solutions’ it.mds AddOn and in doing this, Jowat became a pioneer as the first German customer using the master data solution.

ARRI Group

With the SAP S/4HANA implementation by NTT DATA Business Solutions, ARRI not only streamlined processes, but also accelerated data analysis and modernized SAP applications. Thanks to NTT DATA Business Solutions’ Managed Cloud Services, ARRI can rely on maximum security within the IT infrastructure.


By implementing SAP S/4HANA Finance and opting for the NTT DATA Business Solutions Managed Cloud Services, Lovoo is prepared for SAP S/4HANA in the future and benefits from increased performance, real-time processed data, freed up capacity and a lot more.

Evergreen & SAP BW/4HANA

The implementation of SAP S/4HANA & BW/4HANA enabled Evergreen Garden Care to have their financial information in one place with profitability analytics instantly available.


Thanks to SAP S/4HANA Cloud, ESL can now enjoy significantly enhanced performance and also quick data access in real time. The complex project was completed successfully on time and within budget, so that the first go-live could be announced after just 3.5 months.


Together with NTT DATA Business Solutions, Ceyoniq could implement SAP S/4HANA Cloud as their new ERP system in only six months and as a special project highlight, only four sub processes required slight adjustments.

Transition to SAP S/4HANA through System Conversion

Do you intend to choose the System Conversion path?

Would you like to get detailed information before deciding?

Do you need to assurance that System Conversion is the best method for your company?

Please contact us and let us arrange a call or a workshop with you. Together, we can find the best solution that suits your business.

Contact Us
Contact Us

Have questions? Please contact us.

Call us at
+90 2166000500
Send a message