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S/4 migration in record time

Viessmann and CBS have completed the world's largest SAP S/4 Hana transformation in the Big Bang manufacturing industry.
E-3 Magazine
August 20, 2019
S/4 migration in record time
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This text has been automatically translated from German to English.

CBS has realized the migration to a completely new digital future platform based on SAP S/4 Hana for the Viessmann Group, a manufacturer of energy systems. During the big bang go-live, 28 production units in 34 countries as well as 78 sales organizations worldwide were migrated to S/4.

The challenging Greenfield project is the largest S/4 Hana transformation in the manufacturing industry worldwide to date. In the process, Viessmann has also implemented innovations such as Integrated Business Planning (IBP) and MRP live (Material Resource Planning).

"All processes in S/4 run smoothly. We have never experienced such a smooth go-live. Production, shipping, warehousing - all areas continued to run at full capacity without interruption. Now we have digital business processes integrated across the company. Our platform for the future 2025 is in place.

explains Harald Dörnbach, Managing Director at Viessmann IT Service.

The project partners see the project as a groundbreaking success.

"The Viessmann project is the beacon for S/4 transformations in the SAP market. In terms of speed, benefits and costs, it sets new standards. Future S/4 migrations will be guided by it."

explains Rainer Wittwen, Member of the Executive Board at CBS.

With its "s.m.a.r.t migration" approach, CBS defined a customized path that brought Viessmann to S/4. The focus of the business re-engineering was on the value-adding processes.

The consultants were selective and focused on those structures, processes, standards and data whose optimization offered added value for Viessmann.

As a result, the full-service provider of energy systems now benefits from innovations such as new digital planning processes and drastically accelerated material requirements planning - the time required has also been reduced.

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3 comments

  • Thomas Burkhardt

    Danke für die Zusatzinfos. In der Grössenordnung ist das wirklich beeindruckend. Glückwunsch an alle Beteiligten.

  • Das gesamte Projekt inklusive Vorbereitung und Implementierung wurde in nur 18 Monaten abgeschlossen. In punkto Geschwindigkeit, Umfang, Nutzen und Kosten setzt es damit neue Maßstäbe. „Ein langwieriges Unternehmensprojekt über fünf und mehr Jahre hätten wir uns nicht leisten können. Die S/4-Transformation ist für einen Global Player wie Viessmann ein unternehmenskritisches Zukunftsvorhaben von strategischer Bedeutung. Zugleich war es das größte IT-Projekt in der Geschichte von Viessmann. Es ist daher ein Quantensprung, wenn sich so ein Vorhaben in kürzester Zeit und zu einem Bruchteil der Kosten realisieren lässt“, erklärt Dr. Harald Dörnbach, Geschäftsführer Viessmann IT Service.

  • Herzlichen Glückwunsch! Und wie schnell darf man sich diese “Rekordzeit” vorstellen?

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Working on the SAP basis is crucial for successful S/4 conversion. 

This gives the Competence Center strategic importance for existing SAP customers. Regardless of the S/4 Hana operating model, topics such as Automation, Monitoring, Security, Application Lifecycle Management and Data Management the basis for S/4 operations.

For the second time, E3 magazine is organizing a summit for the SAP community in Salzburg to provide comprehensive information on all aspects of S/4 Hana groundwork.

Venue

FourSide Hotel Salzburg,
Trademark Collection by Wyndham
Am Messezentrum 2, 5020 Salzburg, Austria
+43-66-24355460

Event date

Wednesday, June 10, and
Thursday, June 11, 2026

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available until 1.10.2025
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Hotel Hilton Heidelberg
Kurfürstenanlage 1
D-69115 Heidelberg

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Wednesday, April 22 and
Thursday, April 23, 2026

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Regular ticket
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reduced with promocode STAbo26
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reduced with promocode STStud26.
Please send proof of studies by e-mail to office@b4bmedia.net.
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*The first 10 tickets are free of charge for students. Try your luck! 🍀
The event is organized by the E3 magazine of the publishing house B4Bmedia.net AG. The presentations will be accompanied by an exhibition of selected SAP partners. The ticket price includes attendance at all presentations of the Steampunk and BTP Summit 2026, a visit to the exhibition area, participation in the evening event and catering during the official program. The lecture program and the list of exhibitors and sponsors (SAP partners) will be published on this website in due course.