SAP Enterprise Operating System

An operating system for digital transformation

In the highly complex reality of digital transformation, the principle of purely managing operating resources, which has proven itself over decades, simply falls short of the mark, because anyone who forgoes key future technologies such as business warehousing, predictive analytics, machine learning, blockchain or the Internet of Things when modernizing their system landscapes is acting downright foolishly from a business perspective.

The classic, often cumbersome R/3 or S/4 construct is now being replaced by a radically new architectural vision known as the Enterprise Realtime Operating System, or RTOS for short. The fundamental architectural glue of this new approach is no longer the isolated ERP system, but cybernetics, i.e. the classic art of control, which is based on the comprehensive harmonization and orchestration of all IT solutions and applications within a uniform, networked platform, a so-called Connected Platform.

Cybernetics and real-time for S/4 Hana

For existing SAP customers, it is essential to understand that the indispensable technical prerequisite for such an enterprise operating system is absolute real-time capability, including cybernetics. A computer scientist does not define real-time as the mere acceleration of processes, but as the absolute guarantee that a system response is available at the exact critical moment when it is relevant to the solution and essential for survival.

Former SAP Chief Technology Officer Vishal Sikka had already understood this visionary perspective many years ago when he proclaimed the „real-time enterprise“ from the Sapphire stage and laid the technical foundation for it with the rapid in-memory database Hana. However, a thorough analysis of recent SAP history reveals the appalling failure of subsequent SAP managers, who simply did not grasp this groundbreaking real-time concept of Hana. Instead of consistently using the Hana platform to finally replace the historically outdated ERP model and develop a genuine RTOS for the enterprise, the Walldorf-based company, driven by financial market interests, almost blindly got bogged down in the shoals of cloud computing.

Dead end: cloud computing

While the global ERP market leader sacrificed valuable time and innovative strength on the altar of the pure cloud subscription, a dangerous alliance formed outside of Walldorf that is actively promoting the concept of the enterprise operating system. The former flagship SAP partner Celonis from Munich is orchestrating such an operating system platform in strategic partnerships with technology giants such as IBM and ServiceNow, which is being positioned as the legitimate successor to traditional ERP.

It is not without a certain historical irony that former SAP CEO Bill McDermott, of all people, who is now at the helm of ServiceNow, together with Celonis Co-CEO Alexander Rinke, outlines this platform as a compelling ERP successor. The current construct of Celonis and ServiceNow still lacks an all-encompassing real-time component, which could curiously represent a last, historic opportunity for SAP, provided that the Walldorf-based company has the courage to upgrade Hana to a genuine enterprise RTOS after all.

But perhaps SAP CEO Christian Klein found the answer to Celonis and ServiceNow at Sapphire 2026 Orlando: Autonomous Enterprise. The fact is that this vision of SAP based on Agentic AI makes the competition look very bad. Celonis from Munich has fallen far behind technically and organizationally and obviously has no answer to SAP's Autonomous Enterprise with a possibly real-time operating system (thanks to ex-SAP Chief Technology Officer Vishal Sikka).

Realtime OS as a relaunch of SAP Hana

This development provides an instructive conclusion for the strategic IT planning of every SAP user. Companies that currently operate S/4 and the Hana database have not done anything wrong for the moment, as S/4 Hana is a solid ERP system, but classic ERP architectures are no longer conceptually capable of providing the complex answers for a truly successful digital transformation.

The much-publicized Intelligent Enterprise is becoming obsolete due to the concept of the Enterprise Realtime Operating System, as such an operating system naturally acts as a fundamental platform for IoT, machine learning, analytics and sustainability, thus replacing the isolated ERP view. IT decision-makers who want to make their company fit for the future must recognize that the goal can no longer simply be to migrate to a new SAP release, but to build a real-time enterprise operating system in order to be able to manage the valuable resources and operating resources of the ERP world sustainably and directly at the moment of greatest need.

Head- and app-less with SAP Joule Work

However, the most radical and at the same time riskiest disruption for users is revealed in the new SAP Joule Work interaction level, which, in conjunction with the head-less and app-less concepts, heralds a fundamental paradigm shift in the operation of ERP software.

SAP is gradually moving away from the classic navigation through countless Fiori apps, menu trees and the historically grown transaction codes that have characterized everyday SAP life for decades. They are being replaced by a consistent app-less approach: users no longer open specific applications, but simply formulate their intentions or desired goal in natural language.

The digital assistant Joule acts as an intelligent orchestrator that proactively evaluates relevant data and triggers the necessary AI agents in the background. This is flanked by an increasingly headless architecture in which the underlying logic - for example in the SAP AI Core - operates as a backend runtime service and as part of an enterprise operating system without its own graphical user interface and is directly integrated into AI pipelines or automated workflows. The software is effectively invisible to the end user, with traditional keyboard and mouse input giving way to simple voice input.

What sounds technically like a fascinating liberation from administrative burdens, in practice harbors relevant risks for existing SAP customers in terms of digital sovereignty and process control. Who monitors and audits an autonomous AI agent that independently triggers orders, compares supplier offers or manipulates bookings in the background?

If the classic user interface is eliminated as a control instance, the underlying data quality and semantic translation by the new SAP Knowledge Graph must be absolutely flawless, as otherwise an AI-supported wrong decision or hallucination can trigger fatal chain reactions in the ERP core in milliseconds.

Ultimately, the critical SAP community must remain extremely vigilant, because the highly praised „Autonomous Enterprise“ must under no circumstances mutate into an uncontrollable black box in which users lose operational control over their own business-critical processes to opaque algorithms, for which they are ultimately billed at a high price via non-transparent consumption metrics.

Discontinued: North Star architecture

Under the leadership of CEO Christian Klein, the Walldorf-based software group SAP is currently undergoing a breathless strategic U-turn which, on closer inspection, raises deep doubts about the company's long-term technological stability. Driven by the existential fear of the financial markets of losing touch in the fast-paced age of artificial intelligence, the recently celebrated North Star architecture was hastily buried and replaced by the new, strongly stock market-driven target image of the Autonomous Enterprise.

SAP promises a technical ERP utopia in which digital assistants and an armada of highly specialized AI agents handle complex end-to-end processes - from the supply chain to the financial close - largely autonomously, reducing tasks that used to take weeks to a matter of days. The architectural foundation of this ambitious construct is the new „SAP Business AI Platform“, which combines previous technologies such as the Business Technology Platform (SAP BTP), the Business Data Cloud (SAP BDC) and the acquired tools LeanIX and Signavio in a single environment.

Buzzword „autonomous“ versus enterprise operating systems

However, if the existing SAP customer takes a critical look behind this cloudy, glossy façade, the concept quickly reveals itself to the enlightened ERP user as a clever sales fraud. The core applications in the engine room remain virtually untouched; they are merely strategically reorganized and given the effective advertising prefix „Autonomous“, so that the well-known SAP Ariba, for example, is now simply marketed as „Autonomous Procurement“.

The overarching umbrella brand for this AI offensive is SAP Business AI, which promotes the embedding of artificial intelligence (embedded AI) directly into the standard processes of the cloud ERP system. SAP boasts that, unlike generic AI providers, it natively understands the deep business context and semantics of millions of SAP data fields. However, the reality at SAP Basis paints a far more sobering picture, with industry insiders and IT decision-makers complaining behind closed doors that SAP marketing lags miles behind the technical reality and that many of the advertised AI functions have an alarmingly low level of evolution.

Enterprise Realtime Operating System: SAP EOS and RTOS

Real „bang for the buck“ or measurable business efficiency gains are still a long way off in day-to-day business, while the Group is primarily orchestrating the integration of external models from providers such as OpenAI or Anthropic via BTP's Generative AI Hub instead of establishing its own dominant ERP AI foundation technology. This strategy also has a massive financial and extortion component for existing customers, as SAP has long used its AI innovations rigorously as leverage to force reluctant on-prem customers into expensive cloud subscriptions such as Rise with SAP. Although Christian Klein recently rowed back slightly after massive protests from user associations such as DSAG and announced that certain AI functions would also be opened up for local installations via interfaces, the fundamental political pressure towards cloud compulsion and incalculable, consumption-based pay-per-use models remains undiminished.

Will SAP CEO Christian Klein achieve the ERP paradigm shift and a new all-time high on the stock market with Enterprise Operating System? No! Even before the new ERP trend had picked up speed, Christian Klein produced a super disaster at Sapphire 2026 in Orlando. Instead of presenting a verified EOS/RTOS roadmap for the next ten years, he glossed over the final concept with the marketing buzzword „Autonomous Enterprise“ and very short-term promises of 100 million euros.

Has SAP CEO Christian Klein found the philosopher's stone with EOS, Enterprise Operating Systems? The egg of Columbus for ERP? SAP EOS (ex-RTOS, see Vishal Sikka) could be an answer to the question of what comes after S/4 Hana. The fact is that classic ERP programming models with their deterministic algorithms are good but have reached the end of their life cycle. From the history of R/2 to ERP/ECC, SAP CEO Christian Klein should know that ERP has never been a short-term business. Existing customers and analysts can only be convinced with well-founded roadmaps. Hana and S/4 development is also over ten years young and it will be similar with EOS - everything else is humbug, marketing and smoke and mirrors - above all: Autonomous Enterprise, right?