Cut through the confusion to get the most from SAP S/4HANA 

As more organizations migrate to SAP S/4HANA, the idea of a “Clean Core” has emerged as a key principle – but it has also given rise to several misconceptions. In a recent masterclass by Basis Technologies, industry experts clarified what a Clean Core really means and how any enterprise can adopt it successfully, regardless of their starting point. 

Below we explore the five myths debunked during the session. You can also watch a recording of the webinar here. 

Myth 1: Clean Core Means No Customization 

One of the biggest misconceptions is that adopting a Clean Core means abandoning all customizations. A Clean Core doesn’t mean zero customization – it simply means smart customization. 

A Clean Core allows for business-critical extensions but shifts them from traditional in-system modifications to modular alternatives. It’s about switching custom development to standardized, upgrade-friendly approaches. 

By leveraging approaches like side-by-side extensibility and SAP BTP, businesses can build flexible, maintainable solutions without “polluting” their core. 

Myth 2: BTP is the Only Way to Achieve Clean Core 

While BTP plays an important role in modern SAP development, it’s not the only path to a Clean Core. 

SAP’s three-tier extensibility model includes in-app and on-stack options that allow for clean, compliant customization within S/4HANA itself. Most customization can still be done in S/4HANA using tools like Embedded Steampunk or key user extensibility, with BTP making up only one part of the picture. 

Myth 3: If You’re Already Customized, It’s Too Late 

Many companies worry that years of custom development disqualify them from Clean Core adoption. This simply isn’t true. 

Organizations can move to adopting a Clean Core at any stage. The first step SAP experts recommend is to stop further polluting the core and then to conduct an assessment.  

Identify what is business-critical, what can be retired, and what can be replaced with standard functionality. Then, adopt a phased approach to migration. This will involve gradually modernizing custom code and moving toward extensible frameworks. 

Remember: Clean Core is a journey, not an instant shift. Start with quick wins and build momentum. 

Myth 4: Clean Core Is Only for Greenfield Implementations 

Clean Core isn’t exclusive to Greenfield projects. Companies taking Brownfield or hybrid approaches can all apply Clean Core principles. 

By approaching the migration as an opportunity to clean up outdated modifications, organizations can shift toward modular, upgrade-friendly architecture. Even in Brownfield, you can refactor or remove old customizations and adopt Clean Core principles step by step. 

Tools like ActiveDiscover help identify unused code, understand dependencies, and accelerate a secure cleanup process. 

Myth 5: Clean Core Only Benefits Technical Teams 

The benefits of a Clean Core extend far beyond the IT department. It provides several tangible business advantages, including: 

• Improved system stability 

• Faster upgrades 

• Reduced downtime 

In some organizations, one hour of SAP downtime can cost millions. A Clean Core minimizes this risk while making it easier to adopt innovations from SAP – including the integration of emerging technologies like AI and machine learning to future-proof your enterprise. 

Clean Core also leads to lower long-term maintenance costs. If upgrades are so expensive you avoid them, it then requires more custom code. Adopting a Clean Core breaks this cycle. 

Key Takeaways 

• Extend your SAP system, rather than modifying it. Prioritize flexible and upgrade-safe solutions that meet your business needs without altering the core system. 

• Understand your current state and avoid polluting your core further. Establish a strong governance model to ensure customizations don’t make your core dirty. 

• Don’t rush to carry over every customization from legacy. Assess each customization’s true value and look to standardize to avoid unnecessary technical debt. 

Ultimately, Clean Core isn’t just about code. It’s about agility, scalability, and long-term business success. 

Achieve a Clean Core today 

Watch our full Clean Core Webinar for a more in-depth look at how organizations can move towards adopting a Clean Core. 

Ready to start experiencing the benefits of a Clean Core? Explore ActiveDiscover, our tool designed to support Clean Core principles and accelerate business agility.