HR transformation: focus on H4S4, SuccessFactors and AI
The German-speaking SAP user group has surveyed its members on the future of HR work. The survey shows: The switch to SAP HCM for S/4HANA dominates the transformation roadmaps, while SuccessFactors is anchored in many cases. Artificial intelligence is named as the most influential trend.

The digital transformation in HR and IT is progressing rapidly - from SuccessFactors migration and artificial intelligence applications to new requirements for time recording and data strategy. The German-speaking SAP User Group (DSAG) asked its members about the challenges, trends and solutions for IT and HR managers and specialists in these areas in the SAP context. Two key findings of the survey: SAP SuccessFactors appears to be firmly anchored in the HR IT roadmaps of many of the companies surveyed. And the changeover to SAP HCM for S/4HANA (H4S4) is currently a topic that is driving many companies.
«The survey of our members in the HR IT environment confirms the high relevance of H4S4 and SuccessFactors conversions as well as the clear areas for action in the field of artificial intelligence (AI), cloud and the digitalization of HR processes in general,» summarizes Hermann-Josef Haag, DSAG Board Member for Human Resources & Public Sector. When asked which SAP systems they currently use in HR, 71% of respondents stated that they still work with SAP ECC HCM (on-premises). 39 percent use SAP SuccessFactors, 23 percent SAP S/4HANA HCM (H4S4) on-premises and 9 percent SAP S/4HANA HCM in the private cloud. Multiple answers were possible for this question.
Conversion to H4S4 dominates transformation roadmaps
As part of the survey, DSAG also used free text to find out which conversions companies are currently undergoing and what they are planning. The majority of respondents stated that they are currently working on the migration to SAP S/4HANA HCM (H4S4) (on-premises or private cloud). This suggests that many customers are migrating to H4S4 in order to protect their previous investments and the core.

«On the one hand, the imminent end of maintenance for existing ERP HCM solutions is forcing companies to plan with future-proof platforms. On the other hand, many companies are faced with the challenge of reconciling data migration, process harmonization and hybrid strategies - with a simultaneous need for planning security and resources,» says Haag. For many companies, the changeover to H4S4 does not initially represent a fundamental functional reboot. Above all, it is a necessary step to ensure maintenance security for existing core HR processes.
The transformation becomes more complex when companies combine the HR changeover with a greenfield approach for S/4HANA, with other modules such as Finance or with the introduction of SuccessFactors. Many companies therefore deliberately opt for a step-by-step approach. Initially, the focus is on securing the existing HR landscape with H4S4, while the modernization of processes and functions - via SuccessFactors, for example - takes place at a later stage.
SuccessFactors between mandatory modules and strategic potential
When asked what role SAP SuccessFactors plays in their HR IT roadmap, just under 4 percent stated that they had fully implemented the cloud solution, while just under 40 percent had partially implemented it and 11 percent were planning to do so. 28 percent of respondents are not planning to introduce SuccessFactors and 17 percent are still evaluating it.
«The results clearly show that although many companies have already taken their first steps towards the cloud, the reality remains strongly characterized by hybrid scenarios,» says Haag, adding: «Especially in the HR sector, cloud transformation is a complex process in which basic functions, integrations and industry-specific requirements must work together seamlessly.»
This heterogeneous transformation landscape is also reflected in the use of SuccessFactors modules. SAP SuccessFactors Recruiting (41%), Employee Central (39%), Learning (37%) and Performance & Goals (34%) - i.e. those modules that quickly offer noticeable added value in day-to-day HR operations - are particularly popular. Payroll-related modules such as Employee Central Payroll (8%) or Time Tracking (9%) are still used comparatively sparingly despite their strategic importance.
In this context, SAP's announcement of a strategic integration of SmartRecruiters into the SAP SuccessFactors portfolio is also interesting. «The plan here is to also make SmartRecruiters AI capabilities available to SuccessFactors Recruiting customers. In the future, SmartRecruiters will replace SuccessFactors Recruiting,» summarizes Haag.
Top challenges in the HR-IT context
When asked directly about the relevance of certain topics in the HR IT context, the following top 5 challenges can be identified as very relevant or relevant: Digital HR processes & self services (74 percent), migration from SAP ECC HCM to H4S4 (64 percent), data protection and compliance in SAP HR systems (55 percent), HR analytics and reporting (52 percent) and time recording & working time law (47 percent).
«The survey shows very clearly that companies in the HR IT context are currently primarily concerned with fundamental structural issues,» says Haag. «Legal and planning security, functioning core processes and reliable systems currently take priority over strategic issues for the future.»
Artificial intelligence and automation as top trends

When asked which SAP and HR trends will have the greatest impact on their work in the next one to three years, the survey reveals a clear picture: artificial intelligence in the HR context was named as the most influential trend by 65% of respondents. This was followed by automation and robotic process automation (RPA) with 53% and people analytics and predictive HR with 34%. The shortage of skilled workers and digital training also remain a dominant field of action with 50 percent.
«The results show that AI, automation and people analytics are becoming strategic levers in HR - but only if they are properly integrated technically, used responsibly and create real benefits for employees and organizations,» says Haag. From DSAG's point of view, clear licensing models are also needed so that the costs of deployment remain calculable and the investments pay off.
DSAG Personnel Days 2026 provide orientation
The issues and topics raised by the DSAG survey also address the DSAG Personnel Days 2026 on. Under the motto «The Dino Dilemma: Survival of the Skilled», the congress on June 17 and 18, 2026 in Heidelberg will stimulate discussion about HR and IT strategies in the SAP context. Over two days, visitors can look forward to two keynotes, numerous presentations and an exhibition with 40 partners.
The main topics clearly reflect the results of the survey: Cloud-first in HR: Between strategy & reality, Artificial intelligence (AI): What HR wants and what HR needs, Departure to SuccessFactors: between mandatory and optional, From mandatory to optional: recruiting, onboarding, learning and co, Low-code & self-services: How SAP can be used innovatively faster, HR and IT in tandem: Successfully mastering SAP projects together and Data-driven HR: Using analytics to create a future-proof organization.
The online survey was conducted among DSAG members from mid-October to the beginning of December 2025. A total of 303 participants completed the survey in full. 44 percent of them are IT specialists, 19 percent HR specialists, 18 percent IT managers, 12 percent HR managers and 7 percent are «other».















