SAP S/4HANA is more than just another new release. SAP’s new business suite brings about so many changes and new functionalities that have the power to transform your business. Meanwhile, the complexity of the software could result into an unsuccessful transformation. Is it that hard? It is. However, attributing to the 25 years of guiding our clients through their SAP implementations, we have gained the right experience and expertise to guide you through your own.

What S/4HANA is really about.

The major innovation of S/4HANA is the radical simplification of the data model it is based on. SAP’s new ERP system SAP S/4HANA is based on the in-memory database platform SAP HANA. Through its fast computing capabilities, it provides you with real time results and insights which are essential in today’s networked and speed driven economy. Besides that, it comes up with renewed applications, analytics and the modern user interface SAP Fiori. One major shift is that important SAP applications like TM and EWM are integrated parts of one single system.

SAP S/4HANA can modify all critical enterprise functions ranging from finance and supply chain all the way to customer service and marketing. Through it, businesses are able to transact, analyze and predict in real time in a world that remains continuously unpredictable.






Supply Chain


Sales & Service

SAP ECC since

years of experience in S/4HANA


S/4HANA: You'll get there with us.

years of experience in SAP ERP

number of engagements in SAP ERP

Your path to S/4HANA.

We see switching to SAP’s new business suite SAP S/4HANA not as an aspiration, but a necessity. It’s not a question of “if” but of “when” and “how” to do the migration. Success requires an organization to not only implement or migrate to a new platform, but to decide on the best-fit deployment option for their unique business. Whether it is an on-premise deployment, with altered infrastructure to handle exponential growth but still enabled for quick innovation cycles, whether it is a mature and flexible private cloud deployment with 2 innovation cycles per year or whether it is a next practice public cloud deployment with 4 innovation cycles a year or even be a mix of all 3 options.


New to SAP or ready for a fresh start

Bring data from your old system to SAP S/4HANA with our integrated data management and quality tools.

If the design of your current SAP landscape is from the 90's, it's probably time to consider a fresh start.

Leverage a digital core, without modifications or work-arounds of the past.


your system

Complete conversion of an existing SAP Business Suite system to SAP S/4HANA.

If your current SAP landscape has been highly maintained (ECC6 or later), you most likely can convert to S/4HANA in just a few steps.


Simplification for faster business value

Ideal for large enterprise with many instances of SAP and non-SAP ERP systems.

Consolidation into one global SAP S/4HANA system or selective data migrations.

Rapidly delivering business value at a corporate-level, such as a soft-close anytime, budget simulations, inventory prediction.

S/4. We have
6 packages for you.

By 2027, SAP will end its mainstream maintenance of SAP ECC 6.0. Even so, many organizations hesitate to start the migration and struggle to make the business case work. This is understandable as the move to S/4 really touches the core of a company and many decision makers fear the consequences and the effort such a big change comes with.

As a leading consulting company with a rich experience and dedicated expertise in implementing SAP software, we know both the requirements and implications of changing and optimizing business processes and the technology perspective. Therefore, we teamed up and developed an approach that helps companies save time, empower users and become proactive instead of reactive. When guiding companies and organizations on their transformation process to SAP S/4HANA we have a clear roadmap and a set of packages. Our 6 steps to S/4HANA help you structure and execute the migration so your company can move quickly and accelerate the desired value.


System health

We analyze your SAP system, identify cost drivers and thus create the prerequisites for preparing your ECC systems in reasonable time and planning the next steps. Together, we will check the necessary prerequisites to be able to optimally and strategically plan your conversion to S/4HANA.


Business process

By making sure your existing business processes are optimized, we will see to it that your business is well positioned for its digital journey. In this phase we will provide you with the right set of business process optimization recommendations.



Together with your business and IT, we fully support your successful SAP S/4HANA conversion project from planning to preparatory steps in ECC, custom code conversion, the introduction of new processes and transactions and the data conversion across all application areas.



Implementation of key simplifications and innovations of S/4HANA, redesign and automate processes and applications – enable users to run new, faster processes. Based on this, we adapt your systems and technology base.


Hosting & cloud

Westernacher Cloud Services provides organizations with a fully integrated, proven SAP software solution to manage business processes in a cloud-based offering. A single monthly or quarterly subscription fee per user includes software, hardware, service and support – all provided by Westernacher and our trusted hosting partners.


Embedded Analytics
& mobile solution

Powerful, integrated operational real-time reporting. Reduction of data redundancies and system architecture. Benefit from faster decisions based on real-time operational reporting.

Would you like to know more about our approach for a structured, smart and efficient migration to SAP S/4HANA? Download our “The 6 steps to S/4HANA” pdf here:


    The future is here to stay. Is your ERP system ready for it?

    SAP Fiori is more than just a slick new design. It is a user interface that can redefine the way enterprise users work and provides a consistent end-to-end experience. It is simple, role-based and responsive. SAP Fiori is part of SAP S/4HANA and other SAP products such as EWM and TM. Westernacher is a true pioneer when it comes to adapting SAP Fiori for the benefit of its customers. With a dedicated Fiori developer team, we can support you in shaping and adapting S/4 functionalities tailored to the specific needs of your company.

    SAP Fiori. It’s more than just a slick design.

    One of our S/4­HANA tools. MDI GDS.

    The Westernacher tool MDI GDS offers master data management for SAP ECC and S/4HANA. It features automatic importation of GS1 data and maintenance of master data in the usual SAP environment enabling you to work faster and safer. MDI GDS offers the fastest and most convenient way to integrate GS1 into your SAP system.

    It all starts with a workshop.

    We run SAP S/4HANA on our own systems, which is regularly updated with the latest SAP upgrades. We are frontrunners in implementing and hosting S/4HANA solutions, providing the important benefits of real-time decision support and increasing user productivity. Benefit from our experience and expertise and get answers to your specific questions depending on where you are on your individual roadmap.

    How can you improve business performance, innovate and fasten processes, increase usability, data quality and flexibility with S/4HANA, Analytics and Fiori Mobile Solutions? What is the advantage and the right time to implement S/4HANA or convert a proven ECC system to S/4HANA? We have four different workshops – adjusted to your individual level of experience. Get to know more by booking a first inspiration day with us:





    This workshop is designed for decision-makers from business and IT who want to get a first basic overview of fundamental innovations, functions and technology of SAP S/4HANA.

    This workshop is designed for decision-makers from business and IT who want to prepare for a system change from SAP ECC to SAP S/4HANA.

    This workshop is designed for decision-makers from business and IT who want to analyze how S/4HANA innovations affect their current system landscape and applications.

    This workshop is designed for responsible project members from business and IT who plan a system conversion or new implementation of S/4HANA.

    Let's work together.

    Please feel free to contact us with any questions. We are looking forward to hearing from you.