Transformation Every Day

Expert Insights and Stories on SAP and beyond.

Transformation Every Day is the podcast for anyone passionate about Digital Transformation done right in the SAP universe. Join hosts Alexander Greb and Johannes Langguth, along with leading experts from SAP and beyond, as they dive deep into what successful digital transformation really takes. Get ready for candid conversations, inspiring experts insights, best practices and practical strategies to drive impactful change in your organization.

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Transformation Every Day

Episode 23: Inside SAP's Clean Core Revolution - Lukas Bretschneider

November 03, 2025 • Alexander Greb & Johannes Langguth • Season 1 • Episode 23

Guest:

Lukas Bretschneider - Architecture Lead Clean Core Extensibility, SAP SE

Hosts:

Alexander Greb - Consulting Director - cbs corporate business solutions
Johannes Langguth - Head of Business Transformation and Architecture - SAP SE

Clean Core — it’s more than a technical concept. It’s a new mindset that challenges how we think about SAP development, extensibility, and long-term innovation.

In this episode, we sat down with Lukas Bretschneider, SAP’s Lead Architect for Clean Core Extensibility, to unpack what Clean Core really means — and why it’s the foundation for a sustainable, future-ready SAP landscape.

Together, they explore:

Why Clean Core is an attitude, not just a rulebook
How ABAP Cloud and released APIs redefine extensibility
The importance of measuring and managing technical debt
The different levels of Clean Core — from A to D
How AI supports development without replacing human insight
The role of governance, change management, and continuous upskilling

Whether you’re a developer, architect, or transformation leader, this conversation offers clear, practical insight into how to build cleaner, faster, and more adaptable SAP systems.

Takeaways:

Clean Core is an attitude, not just a technical requirement.
Developers must familiarize themselves with new programming models like ABAP Cloud.
Measuring technical debt is crucial for maintaining a clean core.
Using released APIs is essential for upgrade stability.
There are different levels of clean core, from A to D.
AI can assist in understanding and managing code, but should not replace human oversight.
Governance and guidelines are necessary for sustainable development.
Developers should aim for the highest level of clean core in their work.
Change management is key when transitioning to clean core practices.
Continuous education and upskilling are vital for developers.

Follow Lukas: https://www.linkedin.com/in/lukas-bretschneider/

Follow Alexander: https://www.linkedin.com/in/alexandergreb/
Follow Johannes: https://www.linkedin.com/in/johanneslangguth/

Thanks to Steven Spears for lending his voice for our podcast intro.
Theme music by Luis Álvarez a.k.a. Fourth Dogma