Reliable process validation without external systems

The S4U web service simulator is a solution for realistically testing your S/4HANA utilities processes, even if external systems are still missing. The simulator ensures consistent, transparent and reproducible tests throughout the entire project cycle.

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Speed up process testing

We accelerate introductions, reduce risks and create planning security — with practical simulation instead of reliance on third-party systems. As a partner to the energy industry, we help companies of all sizes react flexibly to new professional and regulatory requirements.

End-to-end testing without third-party systems
Early start: trainings & initial start-ups
Quick change: simulator <> test system
Reproducible & transparent
-60%
Waiting times in process tests
faster initial start-up
< 5 min
Switchover time simulator <-> test system

The web service simulator as a project accelerator

With the simulator, teams start earlier, test more frequently and deliver more reliably. This makes decision-making processes shorter, iterations faster and projects more predictable — for a rapid, low-risk introduction of S/4HANA Utilities.

Our projects

These projects contribute to the overall goal of a sustainable and future-oriented energy industry by combining innovation, efficiency and environmental awareness.

Project ImgStadtwerke München
location
Munich, DE
date
2024
Project ImgStadtwerke Kaiserslautern
location
Kaiserslautern, DE
date
2025

The web service simulator in the FAST-S/4-IOUS project

With the web service simulator, we decouple your S/4 transformation from external dependencies: It accepts requests and answers like a real remote site, so that end-to-end processes can run immediately. Interfaces can be tested early and reproducibly, and deviations become transparent. The quick switch to the real test system keeps integration paths short and measurably reduces waiting times.

The FAST-S/4-IOUS project with Demando and Stadtwerke Kaiserslautern used the web service simulator:
It provided the missing remote site and enabled executable end-to-end processes from day one. Interface errors were checked visibly and reproducibly at an early stage.
The rapid changeover to the test system significantly shortened integration paths and reduced waiting times.

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