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ERP modifications

A double challenge for SAP's existing customers: How to bring Abap modifications from the Z namespace to S/4 and how to realize future customization on the SAP Business Technology Platform?
Peter M. Färbinger, E3 Magazine
April 27, 2023
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This text has been automatically translated from German to English.

RAP, CAP, Build and Steampunk

Abap RESTful Application Programming (RAP), Cloud Application Programming (CAP), Low-Code/No-Code with SAP Build and Steampunk as Embedded Abap are just a small selection of the ways in which an existing SAP customer will be able to modify his ERP system in the future. Accordingly, it is not only necessary to study various concepts from open source and GitHub to proprietary steampunk code, but also to learn the programming languages themselves. No easy task for programmers in which language to code the algorithms in the future - and Java is still around!

Private and public cloud

If the existing SAP customer is faced with the challenge of creating individual extensions for their ERP system, then a closer look at their S/4 is advisable. With an S/4 public cloud edition, the possibilities are very limited. With a private cloud system, which largely corresponds to an on-prem installation, there are considerably more options and also the option to intervene more deeply in the ERP - nevertheless, the principle of "Keep the Core Clean" also applies here.


The response to Steampunk was very positive in the DSAG working groups at the Technology Days in Mannheim. For the most part, however, these were existing SAP customers who had spent half their professional lives with Abap. What does the future hold? Should a new customer for the private or public cloud also learn Abap with a view to steampunk? Karl Kessler, VP Product Management Abap Platform at SAP, answers this question in an E-3 exclusive interview: "Abap is still relevant and will remain so in the future. For S/4 customers, both existing and new, SAP offers a modern Abap Cloud development model. Abap Cloud allows to build upgradeable and cloud-enabled solutions and extensions. Depending on the scenario, customers or partners can build their Abap Cloud extension directly on the S/4 stack or on the Business Technology Platform. Within the community, this is also referred to as Embedded Steampunk or Steampunk. The Abap Cloud development model is available on the BTP and in all S/4 editions, i.e. public cloud, private cloud and on-prem, in the latest version."

Peter M. Färbinger, E3 Magazine

Peter M. Färbinger, Publisher and Editor-in-Chief E3 Magazine DE, US and ES (, AG, Freilassing (DE), E-Mail: and Tel. +49(0)8654/77130-21

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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. All information about the event can be found here:

SAP Competence Center Summit 2024


Event Room, FourSide Hotel Salzburg,
At the exhibition center 2,
A-5020 Salzburg

Event date

June 5 and 6, 2024

Regular ticket:

€ 590 excl. VAT


Event Room, Hotel Hilton Heidelberg,
Kurfürstenanlage 1,
69115 Heidelberg

Event date

28 and 29 February 2024


Regular ticket
EUR 590 excl. VAT
The organizer is the E3 magazine of the publishing house AG. The presentations will be accompanied by an exhibition of selected SAP partners. The ticket price includes the attendance of all lectures of the Steampunk and BTP Summit 2024, the visit of the exhibition area, the participation in the evening event as well as the 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 time.