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Natuvion DCS paves the way to SAP S/4HANA

Case Studie

 

Erfolgreiche H4S4 Migration bei Stadtwerke München mit Unterstützung von Natuvion


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Utilities | Dortmund | approx. 2,184 employees (2022) | EUR 250 M revenue (2022)

Dortmunder Stadtwerke AG (DSW21) is the parent company of 21-Group and ensures public transportation for its customers with more than 100 million annual trips. The group with its subsidiaries and equity in other businesses are responsible for electricity, gas, water, and heat supply (DEW21), telecommunication and data  transfer (DOKOM21), logistics and cargo goods (Dortmund Harbor), affordable housing (DOGEWO21), and large urban development projects. Furthermore, DSW21 is well-positioned in the energy sector with its subsidiary DEW21 and its stakes in RWE, STEAG, and Gelsenwasser.

Further information is available at www.dsw21.de

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Über die Stadtwerke München

Umsatz: 9.672 Mrd. Euro

Industrie: Energie

Produkte | Services: Strom, Gas, Wasser, Bäder, Elektromobilität,
Photovoltaik, Telekommunikation

Natuvion Leistung: Conversion auf HCM für SAP S/4 HANA

Challenge
  • Complex migration of large data volumes from multiple SAP ECC systems.

  • Selective migration of relevant data and historical information.

  • Execution of functional pre-project activities, including the New General Ledger and Asset Accounting.

  • Technical and organizational transformation of Finance and Logistics processes. 

Solution
  • Deployment of the Natuvion Data Conversion Suite for the entire migration process.

  • Selective extraction and transformation of SAP ECC data.

  • Definition of selection and mapping rules for data transfer.

  • Training and enablement of the rku.it team by Natuvion experts.

Result
  • Successful migration to SAP S/4HANA and preparation of the NextGen platform.

  • Independent execution of migration activities by rku.it following enablement.

  • Smooth and efficient data migration powered by the Natuvion DCS.

  • Established foundation for further transformation projects in the SAP S/4 Utilities environment.

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Objective

Dortmunder Stadtwerke AG (DSW21) and Dortmunder Energie- und Wasserversorgung GmbH (DEW21) aimed to streamline and optimize their business processes across areas such as Financial Accounting, Controlling, Order Management, Asset Accounting, Purchasing, and Materials Management. To achieve this, the companies decided to transform their existing SAP ECC landscape onto rku.it’s NextGen IT platform.

A key component of this initiative was the preceding migration to SAP S/4HANA — not only for DSW21 and DEW21 themselves, but also for their subsidiaries. Together with IT service provider rku.it and supported by the Natuvion Data Conversion Suite (DCS), the project aimed to ensure a secure and efficient data migration.

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Industry:

Utilities

Key service:

SAP S/4HANA migration with Natuvion DCS

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Project approach:

Selective data transition

Project duration:

-

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Source system:

SAP ECC system

Target system:

SAP S/4HANA

Detailed project overview

Step by Step Towards SAP S/4HANA

The transition to SAP S/4HANA represented a complex transformation challenge for the corporate group. Large volumes of data from the existing SAP ECC systems had to be selectively migrated while extensive functional preparation activities were carried out simultaneously. These activities included the implementation of the New General Ledger, the conversion of Asset Accounting, and Customer Vendor Integration (CVI).

In addition, the significant changes across Finance and Logistics required careful technical preparation and execution. At the same time, only relevant data and selected historical information were to be transferred from the legacy systems in order to establish an efficient and future-proof system landscape.

Natuvion DCS: One Tool, Multiple Possibilities

To technically execute the transformation, rku.it relied on the Natuvion Data Conversion Suite. At the very beginning of the project, the solution was used to selectively extract the relevant data from the SAP ECC systems of DSW21 and DEW21. This enabled the targeted exclusion of specific company codes while transferring only the required historical data.

As the project progressed, the Natuvion DCS supported the definition of selection and mapping criteria for migrating FI data into the New General Ledger. In addition, the solution enabled the transfer of data from existing table structures into the new General Ledger and Asset Accounting tables. In the final phase, the Natuvion DCS supported the complete migration of all relevant data into the SAP S/4HANA structures.

Another critical success factor was the close collaboration between Natuvion and rku.it. Through comprehensive enablement activities delivered by the Natuvion Transformation Team – including training videos from the Natuvion Partner Academy, virtual workshops, and on-site training sessions – the rku.it team was fully empowered to independently operate the Natuvion DCS.

Empowered to Operate the Natuvion DCS

Thanks to the use of the Natuvion Data Conversion Suite, the prerequisites for a successful transition to the NextGen platform were established efficiently and reliably. Following the enablement program, rku.it was able to independently execute the migration runs and successfully complete the SAP S/4HANA transformation for DSW21 and DEW21.

The structured project approach, the selective migration of data, and the technical support provided by the Natuvion DCS enabled a smooth transformation of the existing SAP landscape. At the same time, the project established the foundation for future transformation initiatives: in a subsequent project, rku.it is already leveraging the Natuvion DCS for the transformation to SAP S/4 Utilities in the Distribution Network Operator (DNO) role.

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Download the full success story as a PDF

It was the Natuvion DCS tool that enabled us to prepare the move rather quickly to the NextGen platform, addressing all requirements. Collaboration with Natuvion was seamless and with the support of the Natuvion transformation experts we executed flawlessly. I am certain that this was not the last project leveraging Natuvion DCS.
Christoph Lautenschläger
Team lead data transparency and efficiency, rku.it

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Rainer Euchermann

Rainer Euchermann

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