Why is a clean core important?

Think of a clean core as ERP without the luggage. Traditional ERP systems are often deployed on-premises and heavily customised to align with unique business processes and industry-specific needs. While these customisations can provide short-term flexibility, they can also bring long-term challenges.

Over time, layers of custom code create complex systems that are difficult to maintain, expensive to upgrade, and prone to error. Each system update or new feature rollout becomes a risky, time-consuming project, requiring extensive testing and rework. This technical debt—the accumulated cost and complexity of maintaining outdated custom code—slows down innovation and makes it harder for businesses to adapt to changing market demands.

That’s where a clean core comes in. At its heart, a clean core means keeping your ERP system as close as possible to its standard, vendor-provided state while handling custom modifications through cloud extensions and side-by-side innovations. It’s like decluttering your ERP system—getting rid of unnecessary customisations that slow down progress while still allowing your business to be flexible and innovative.

The business case for a clean core strategy

Adopting a clean core isn't just about IT efficiency—it's about staying agile in the face of change. A clean core strategy enables your organisation to:

• Upgrade faster and innovate continuously
  When businesses keep their core ERP systems clean, they can quickly adopt new software updates without worrying about breaking customisations. This means they can access the latest features, security patches, and regulatory compliance updates as soon as they become available.
• Reduce technical debt and keep costs low
  A clean core minimises the need for custom code, leading to lower maintenance costs and a more manageable, efficient IT environment that’s easier to maintain and scale.
• Increase system performance and reliability
  Excessive modifications can introduce instability. By adhering to standard processes, you can help ensure your ERP system remains stable, scalable, and high-performing.
• Embrace cloud flexibility
  Instead of modifying your core system, you can use cloud-based tools like SAP Business Technology Platform (SAP BTP) to add functionality while keeping your ERP foundation intact. That allows for flexibility without the downsides of traditional customisations.

How to transition to a clean core ERP system

Moving to a clean core doesn’t happen overnight—it requires a clear strategy and a shift in how you think about ERP customisation. Here’s how you can begin your transition:

1. Assess your current customisations
   Start by auditing your ERP system to identify which customisations are truly necessary and which can be replaced with standard functionality or cloud extensions.
2. Prioritise standardisation
   Whenever possible, adopt industry best practices and use out-of-the-box ERP features instead of custom-built solutions.
3. Leverage side-by-side extensibility
   Instead of modifying the ERP core, use SAP BTP to build bespoke applications and integrations that sit alongside the core system.
4. Adopt an agile mindset
   A clean core isn’t a one-time project. It’s an ongoing commitment with enormous benefits in the long term. To achieve the best results, consider adopting an agile approach that emphasises flexibility, collaboration, and continuous improvement.

SAP clean core tools and services

SAP provides a comprehensive suite of tools and services to help businesses successfully adopt and maintain a clean core strategy. Whether you’re transitioning to SAP S/4HANA Cloud or optimising your existing system, these SAP clean core offerings can help you put your best foot forward.

Learn more about how SAP clean core solutions enable continuous innovation whilst keeping ERP systems stable and upgrade-ready.

SAP clean core dashboard

• Real-time insights
  The SAP for Me portal offers easy-to-use reporting features to help you measure the success of your clean core strategy.
• Clear visibility
  RISE with SAP enables your team to track key metrics and get a comprehensive view of your progress as you transition to a clean core.
• Quarterly updates
  Continuous improvement is one of the major benefits of moving to a cloud ERP system. SAP will send you quarterly updates about the latest upgrades and enhancements, so you’ll always be in the know.

Clean core services

• Advisory services
  Receive tailored guidance from SAP experts to understand the benefits of a clean core strategy and decide which option is right for you.
• Implementation and migration support
  SAP's experts help you select the right solution for your needs, create a step-by-step implementation plan, and achieve a smooth integration with your existing systems.
• Enablement and coaching
  Accelerate your clean core journey with tailored training programmes, hands-on workshops, and expert coaching.

Global strategic service partners

• Extensive expertise
  Our network of partners can help you improve your existing processes and operations with guidance from leading SAP partners.
• Defined cloud migration strategy Develop a tailored roadmap to migrate your ERP system to the cloud with confidence.
• Ongoing support Receive continuous guidance and hands-on assistance to keep your SAP clean core system running at its best. Support includes industry-specific solutions, bespoke development, and change management assistance.