SAP S/4HANA Conversion | Your path to SAP's Next Generation ERP

Benefit from more than 15 years of experience in SAP consulting and migrate safely and without risk from SAP ERP to SAP S/4HANA

What is SAP S/4HANA?

Our Offer

Greenfield or Brownfield?

SAP S/4HANA - the digital core for real-time insight into your organization

With SAP S/4HANA, companies move securely on the Internet of Things (IoT) and benefit from real-time analysis. The software can be seamlessly integrated into business networks and solutions of other software providers. It is the basis for making the right decisions at the right time. The suite is based entirely on the SAP HANA in-memory platform and is available both on-premise and in the cloud.

However, a migration to SAP S/4HANA is much more than just an upgrade to a new SAP release. It brings with it a significant number of new worthwhile business and technical innovations as well as user-oriented optimizations.

Sooner or later, your company will also face the challenge of having to successfully carry out an SAP S/4 HANA conversion. Unfortunately, many long-term SAP ERP customers underestimate the challenges and complexity of a conversion project.  

Even before the conversion, a large number of issues must be considered:
  • How do I deal with my custom code, i.e. with in-house developments?
  • How can I optimally manage my new SAP S/4HANA system landscape?
  • What downtimes must I expect during the final system changeover (go-live)?
  • How long does my code freeze (development stop) last before the conversion and what should I be aware of?
  • Which data must or should be cleaned up and archived as part of the housekeeping?
  • What does my new role and authorization concept look like and how do I bring my users into the new system?
  • How do I ensure that my new SAP S/4HANA system meets current security requirements?
  • What (technical) requirements do I have to meet in order to convert?
  • Which transactions no longer exist in SAP S/4HANA or which are being replaced?
  • What does my SAP Fiori strategy look like?  

Questions to which we will find answers together with you.

Your Contact Person

Jana Murrweiss IBsolution
Jana Murrweiss

+49 7131 2711-3000


“An SAP S/4HANA migration is not only a technical challenge. It touches and affects almost every business area.”


Find your path to SAP S/4HANA

Brownfield or Greenfield?


There are two fundamentally different approaches to SAP S/4HANA conversion: Greenfield and Brownfield.

The greenfield approach is actually a new implementation of your ERP landscape. Customers take advantage of the opportunity to reassess all processes and in-house developments - in other words, to start from scratch and break down established structures. The biggest challenge of the greenfield approach, however, is the hardly calculable effort (both organizational and personnel) and the duration of the implementation project - business processes are redefined and coordinated with all participants, processes are mapped in the system and tested in detail, documentation is created and/or adapted, new applications are developed and implemented, and users are trained and instructed.    Translated with (free version)   

In contrast, the brownfield approach is characterized primarily by a relatively short project duration. Already defined processes and in-house developments are technologically migrated in a first step and then adapted step-by-step to new requirements and innovative business ideas. The brownfield approach thus offers decisive advantages compared to the greenfield variant - above all through the reduced complexity of the migration project and the significantly shorter project duration. These are the main reasons why the majority of SAP customers choose the brownfield variant.

Behind the brownfield strategy is a system conversion in which the existing SAP ERP system is transformed to SAP S/4HANA in phases. For this purpose, a SAP S/4HANA Roadmap is created, which shows the way to SAP S/4HANA step by step.

We recommend a system conversion in brownfield approach if ...

  • you want to switch to SAP S/4HANA quickly and pragmatically
  • you want to create the technical basis for innovation
  • you want to introduce process innovation iteratively and agilely in your company

The advantages of an SAP S/4HANA Brownfield System Conversion



With the brownfield approach, the new SAP S/4HANA environment can be set up more quickly because the existing processes are largely retained.


Low risk

By taking over existing processes, the project scope is reduced and the risk of errors in the mapping of processes in the new system is reduced.


Fewer delays in the project

With a system conversion, such as the brownfield approach, the project effort and time frame can be better planned.


Reduced training effort

Step-by-step migration brings users closer to the system. This reduces the amount of training required and the associated costs.


High user acceptance

Established processes and in-house developments are continued in the first step and gradually modernized.

Clear success factors for a brownfield conversion from SAP ERP to SAP S/4HANA

Since all company and system landscapes have grown individually, there is no general recommendation how to successfully migrate to SAP S/4HANA. Nevertheless, we were able to identify a number of success factors that must be taken into account in all migration procedures.

The basis of all migration projects is a clear objective, supported by all departments involved, the national subsidiaries and the management.

Furthermore, it is recommended to use the most current software version of SAP S/4HANA. This is the only way to avoid that a multi-year program plan is prolonged by upgrades.

Furthermore, a high quality of the master data used is important. Ideally, the standardization and harmonization of the master data objects should begin parallel to the process design. This is because standardization accelerates migration and speed is an important factor for project success.

Peripheral systems such as SCM or CRM must be included, as shifts in functionality may occur.

The employees also play a decisive role. The acceptance of a migration to SAP S/4HANA stands and falls with the speed of implementation. Agile working methods and early piloting of Minimal Viable Products (MVPs) are therefore crucial for success. Small concessions in localization or the takeover of old functions can win the hearts of employees.


Our offerings

You want to implement SAP S/4HANA step by step in small defined projects?

Then we recommend that you get started with our Strategy Workshop for SAP S/4HANA. All further steps in the project build on the knowledge gained in this workshop.

Are you wondering how to transfer your custom applications to SAP S/4HANA?

Our add-on INCEMENDO.data_access provides OData services for SAP ECC to enable communication between the standard ERP and SAP Cloud Platform. Make your custom applications compatible with SAP S/4HANA even before the actual migration.

You first would you like to get an idea of the innovations that will drive you forward?

In this case, we recommend that you carry out a pre-study. This takes a detailed look at all layers of an SAP S/4HANA conversion - individually tailored to your situation. The end result is a roadmap that takes you directly to SAP S/4HANA.

Workshops and Packaged Solutions

Strategy Workshop for SAP S/4HANA

Are you still unsure whether you want to implement SAP S/4HANA in a greenfield or brownfield approach? Is a cloud deployment of the ERP suite the right way for you? We will clarify these and many other questions together with you in our SAP S/4HANA strategy workshop.


System Conversion Workshop for SAP S/4HANA

You have decided to implement SAP S/4HANA using a brownfield approach, i.e. in the form of a system conversion? In our one-day workshop, we will work with you to develop an individual roadmap for your SAP S/4HANA conversion, taking into account all necessary preparatory work.


Harmonization Packages for SAP Business Partner (S - M - L)

In the course of a migration to SAP S/4HANA, it is imperative to switch to the SAP Business Partner data model. With our three consulting packages you receive this changeover at a fixed price - tailored to your specific needs. Harmonize customers and suppliers under the SAP Business Partner.


Migration Package for SAP S/4HANA General Ledger

In SAP S/4HANA there is only one journal table based on the New General Ledger. For this reason, you should implement the new general ledger before the migration. Use our migration package and implement the new general ledger at a fixed price. 


Implementation of SAP FSCM Credit Management at a fixed price

Do you want to reduce financial risks by optimizing your receivables and credit management?

Or are you about to implement SAP S/4HANA, which requires SAP FSCM Credit Management (Financial Supply Chain Management)?

In both cases, we offer to implement SAP FSCM Credit Management (FIN-FSCM-CR) at a fixed price. 


Simplify now - simplify your business with SAP S/4HANA

Finanzwesen digitalisieren IBsolution

Digitize Financial Accounting


Control supply chains


Collaborative procurement


Efficient control of product lifecycles


Company-wide transparency


Industry-specific solutions

Would you like to get more information about our SAP S/4HANA consulting services?

Simply fill out and submit the form. We will contact you as soon as possible.

What you can expect from SAP S/4HANA

State-of-the-art user experience (UX)




Next generation process design


What is SAP S/4HANA?

SAP S/4HANA is the new Business Suite from SAP. An ERP (Enterprise Resource Planning) software that supports all business processes of a company and technologically replaces all previous Enterprise Core Components (ECC) of the SAP Business Suite.

The name SAP S/4HANA means SAP Suite for (4) HANA, which also means that the solution runs exclusively on the SAP HANA in-memory database. SAP S/4HANA is available both as an on-premise version and in the cloud as SAP S/4HANA Cloud.

With SAP S/4HANA and SAP Fiori, SAP delivers modern user interfaces that enable a better user experience (UX). At the same time, the data model is significantly simplified thanks to the underlying in-memory database.

What are the advantages of SAP S/4HANA?

  • Modern user interfaces with SAP Fiori and improved user experience (UX)

  • Simplified data model

  • Easy adaptation and modernisation of business processes

  • Faster reporting and analysis

  • Relief of the user through artificial intelligence (AI) and machine learning

  • Real-time evaluation even of large data volumes

  • Reduced total cost of ownership in terms of deployment, maintenance and number of servers

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How is the migration to S/4HANA done?

There are basically three different ways to switch to SAP S/4HANA. The choice of the best scenario depends strongly on the customer's situation, the objectives and the time schedule.

  • The greenfield approach requires a completely new implementation of SAP S/4HANA. It is recommended for new or existing customers who want to use the switch to SAP S/4HANA to clean up with grown structures and redefine their processes. However, this type of conversion can quickly mutate into a costly project.
  • In the brownfield approach, simply put, the current system is mapped 1:1 on a new technological basis. In order to realize this, some preliminary work must be done in the run-up to the migration in order to reduce technical difficulties to a minimum, for example due to different data models.
  • In landscape transformation, companies do not convert the entire system, but only selected parts of the business process. The primary goal of a landscape transformation is to simplify the existing landscape by standardizing the systems or outsourcing individual business processes.

The IBsolution Strategy Workshop for SAP S/4HANA provides a recommendation for the preferred migration path including an individual schedule.

What preparations must I make?

Customer Vendor Integration (CVI) becomes mandatory

Two thirds of the companies still have to deal with the introduction of the Business Partner (Customer Vendor Integration - CVI). This becomes mandatory with SAP S/4HANA and must already be implemented before the system is converted to S/4HANA.

With our Harmonization Package for SAP Business Partner, we enable the conversion from the classic to the new data model at a fixed price.

Not without the appropriate authorization

The architecture and database structure of SAP S/4HANA also have an effect on the authorization system. Working with Fiori apps requires changes to roles and associated authorization objects. As a first step, an authorization check provides information on where exactly the companies need to start.

What happens with in-house developments (custom code)?

Custom code that is still needed functionally, it is worth considering implementing them as an independent service on the SAP Cloud Platform and decoupling them from the SAP S/4HANA migration.

The new general ledger

Similar to the Business Partner (CVI), SAP is making the New General Ledger a mandatory requirement for SAP S/4HANA. Compared to the classic general ledger, the New G/L offers a number of new functional enhancements. The data structure has been enhanced with new fields and can be further enhanced with customer-specific fields.

The Migration Package for SAP S/4HANA General Ledger helps to introduce the new general ledger pragmatically and efficiently on the basis of an existing system. After the migration to SAP S/4HANA, there is then only one journal table based on the New GL structure.

When is the right time to switch to SAP S/4HANA?

Postponed is not abandoned. Even though SAP recently extended maintenance for Business Suite 7 by two years, companies should not put off SAP S/4HANA migration. This is the only way to plan and execute all necessary steps in good time.

The maintenance extension for SAP Business Suite 7 until 2027 only gives companies a breather at first glance. Moving to SAP S/4HANA is a complex project that takes time. In addition, some activities must be completed before the actual migration. In this respect, companies are well advised to make good use of the remaining time until the end of SAP ERP 6.0 support.

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