SAP S/4 HANA without secrets - conversion or reimplementation?

Every company deciding to migrate to SAP S/4HANA needs to know the answers to a few key questions. Among them is the choice of the migration path. What should be considered when planning this process, what questions should we ask ourselves and which migration path will be the best for our company?

Choose between two solutions

Choosing the optimal migration path to SAP S/4HANA requires analysis both in terms of the business strategy and the current technical condition of the system. There are two possible scenarios:

  • conversion
  • reimplementation

The brownfield conversion is the equivalent of the technical upgrade that is possible for the S/4HANA on-premise and S/4HANA Private Cloud versions. It consists of converting the currently used "as is" system to a new S/4HANA product, with possible adjustments resulting from the specifics of the new version. Unfortunately, the process is a bit more complicated than a regular upgrade. Why? The most important reason is the significant functional differences. The lack of previous experience with the HANA database is also important - in the case of customers who have not previously used the HANA database, it is necessary to migrate the database, as well as change the hardware platform to one that complies with the requirements of the HANA database and in-memory processing.

Reimplementation (the so-called greenfield) means full implementation of the system on a new platform. It should be noted here that the concept of "new" or "full" implementation does not necessarily mean a project in which we start with a "blank sheet" and once again bear the costs of implementation "from scratch". There are several tools - such as SAP Model Company or Best Practices, which, in combination with the SAP Activate methodology, allow the implementation to be carried out more effectively, based on ready-made, preconfigured processes and solutions, also industry-specific, tailored to the specific needs of the customer, wherever justified and necessary.

Which of the two paths will be best for your business?

If the current solutions support your company's development strategy, do not require thorough changes, and there are relatively new SAP implementations behind you, it is worth considering conversion. However, if the current solutions are not flexible enough, and installations with several years of history and accumulated over the years of baggage for modifications and extensions are expensive to maintain and difficult to develop - reimplementation will most likely be the best solution.

We know that choosing a migration path is often a difficult task - are you not sure which of the two paths your company should take? Contact us! We will help you make the right decision.