SAP S/4HANA Migration: Transitioning from ECC to the Future

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SAP is scheduled to discontinue support for ECC by 2027. Although this may seem distant, the deadline is approaching rapidly. They already gave companies more time once because few were switching to the new system. This time, it seems like they’re serious about the deadline. Shifting from the old system (ECC) to the new one i.e., SAP S/4HANA is a big task. It could take months because a lot of data and complex processes are involved. If you wait until the last minute, you might have to rush, and that’s not good. Rushing can lead to mistakes and mess up how your business operates. Even before you start moving things, there’s a lot of planning and preparation to do. I’ll break it down in simple steps so you can smoothly transition from the old SAP to the new and improved version.

What is SAP ECC?

SAP ECC, which stands for Enterprise Resource Planning Central Component, is like a super-smart computer system for big companies. It helps them do many important things like managing money, planning products, and caring for customers. Think of it as a big toolbox with different tools (modules) inside. This system is a bit like a superhero because it can be customized to fit a company’s needs. But here’s the catch: if you change something in one part of the system, it can affect other factors, and that can get a bit tricky.

The company behind this superhero system, SAP, is saying they won’t be giving it updates and support after 2027. Instead, they want companies to switch to a newer and fancier system called SAP S/4HANA. So, in simple terms, SAP ECC is like the old superhero, and it’s time for companies to switch to the new and upgraded SAP S/4HANA before the old one retires.

What is SAP S/4HANA?

SAP S/4HANA is like a super-smart computer program made by SAP for big businesses. It’s the new and improved version, way fancier than its older brother, SAP ECC. ECC won’t get updates after 2027, so companies are moving to the new kid on the block.

What makes S/4HANA cool is that it uses something called SAP HANA, a special kind of database. This lets it do super-fast business analyses and handle lots of data simultaneously. It’s like having a superhero sidekick that helps companies know customers better and make decisions quickly.

S/4HANA is also a flexible buddy. It can work with other business programs seamlessly, making everything run smoother. So, companies are switching to S/4HANA for its high-tech powers and better business methods.

Different versions of S/4HANA

Imagine you’re using a familiar tool called SAP ECC for your work. Now, there’s a new and improved version called S/4HANA. You and your team need to know how S/4HANA works to make the switch smooth. This means getting hands-on experience with the new features, things it can do, different sections (called modules), and step-by-step processes (workflows). Understanding all these parts of S/4HANA is like learning the ins and outs of a new and upgraded tool.  

Why is this important? Knowing what S/4HANA can do helps you get the most out of it. It’s like having a new smartphone – you get the best experience when you know all the cool things it can do. Also, there are different versions or ways to use S/4HANA. So, by exploring its features, you can decide which version suits your needs best. It’s like choosing the right phone plan for your new smartphone. In simple terms, getting to know S/4HANA is like learning to use a new and better tool for your work, ensuring you can do everything efficiently and pick the best way to use it. 

SAP S/4HANA Cloud, public edition:

  • Hosted online for flexibility.  
  • Managed by SAP for easy use.  
  • Scales easily to match your needs.

SAP S/4HANA Cloud, private edition:

  • Hosted in a secure, personal online space.  
  • Offers high customization and security 
  • Managed by SAP for hassle-free operations.

SAP S/4HANA On-Premises managed by SAP (HEC):

  • On your servers with SAP’s help.  
  • Enjoy control with reduced operational burden.  
  • Managed environment for stability.

SAP S/4HANA On-Premises:

  • Traditional setup on your in-house servers.  
  • Maximum power and customization.  
  • Requires your team to work on everything.

Ultimately, choice depends on your business requirements, how much control you want, and your preferences for customization and infrastructure management.

Exploring the Distinctions Between SAP S/4HANA and SAP ECC

SAP S/4HANA and SAP ECC are both ERP (Enterprise Resource Planning) solutions developed by SAP, but they differ significantly in several key aspects:  

  • Database Technology: SAP S/4HANA utilizes the SAP HANA in-memory database, enabling real-time analysis and processing of
  • . SAP ECC can run on various databases, including HANA, but lacks the optimization for in-memory technology.  
  • User InterfaceSAP S/4HANA features a modern and simplified user interface for improved user-friendliness and efficiency.  
  • Universal Journal: SAP S/4HANA introduces the Universal Journal as a single source of truth for financial data, streamlining access and analysis of financial information.  
  • MATDOC and Real-time Inventory Management: SAP S/4HANA introduces MATDOC, a new line item for inventory management, allowing for real-time tracking and management of inventory.  
  • CO & FI Merger: SAP S/4HANA merges the CO (Controlling) and FI (Finance) modules, simplifying financial management and reporting processes.  
  • Change in Custom Code: SAP S/4HANA is designed to minimize the need for custom code, simplifying system maintenance and upgrades.  
  • Business Partners: Business Partners are mandatory in SAP S/4HANA, providing a unified approach to managing customer and vendor relationships.  
  • Real-time MRP: SAP S/4HANA features real-time Material Requirement Planning (MRP), allowing for immediate calculation of material needs and enhanced inventory management.  
  • Global Trade Services and Extended Warehouse Management: SAP S/4HANA includes Global Trade Services for efficient global trade process management and introduces Extended Warehouse Management for real-time inventory tracking and warehouse operations.  

Importantly, SAP ECC has reached its end of life, and SAP is encouraging users to transition to SAP S/4HANA for continued support and enhanced capabilities. This move signifies a strategic shift towards a more modern and efficient ERP solution.

Why Make the SAP ECC to SAP S/4HANA Migration Now?

Switching from SAP ECC to SAP S/4HANA is necessary because SAP ECC won’t be officially supported after 2027. Without support, businesses might face serious problems, slowing down their operations. Keeping the old system means using internal teams and resources just to maintain it, leaving less room to adapt to industry changes or new challenges.  

Here’s why making the move now is crucial:  

  • No More Support by 2027: SAP ECC won’t get support after 2027, causing potential issues for businesses relying on it.  
  • Maintaining Outdated Systems is Costly: Using outdated systems means spending more on maintenance and getting fewer benefits over time.  
  • Flexibility for Changing TrendsSwitching to S/4HANA allows businesses to be more flexible and adapt to new industry trends and challenges.  
  • Future-Proof Your Business: S/4HANA is designed for the future, ensuring your business stays relevant and competitive.  
  • Difficulty Finding SAP Experts Later: Waiting until 2027 makes it harder to find qualified SAP experts, and if you do, they might cost more.  
  • Avoid Last-Minute Disruptions: Waiting till the last minute can be disastrous, errors, and a longer, more stressful migration process.  
  • Smooth Transition with Planning: Planning allows for a smoother transition, avoiding sudden disruptions and giving teams time to learn and adjust.  

In short, moving to SAP S/4HANA now makes sense to avoid future problems, adapt to industry changes, and ensure a smooth transition without last-minute stress.

Top of FormSteps for Moving from ECC to SAP S/4HANA

Assessment and Planning:

  • Evaluate your current ECC system and form a dedicated project team.  
  • Develop a migration plan with clear goals, timelines, and resource requirements.

System Preparations:

  • Ensure your ECC system is up to date with the latest patches.  
  • Check compatibility and prerequisites for SAP S/4HANA.  
  • Conduct system health checks to identify potential issues.

Data Analysis and Classification:

  • Categorize data into hot, warm, and cold segments based on frequency of access.  
  • Determine how much data needs to be transferred, stored, or archived in S/4HANA.  
  • Optimize the migration process by focusing on essential information.

Archiving Legacy Data:

  • Archive historical or infrequently accessed data to reduce the load on the live system.  
  • For data retention, ensure compliance with legal requirements. 
  • Mitigate the data loss risk or corruption by having a backup archive.

Fit-Gap Analysis:

  • Identify new features in SAP S/4HANA to support business requirements.  
  • Conduct a fit-gap analysis to identify differences between current and new functionalities.  
  • Prioritize and develop a plan to address identified gaps.

Readiness Check:

  • Utilize the SAP Readiness Check tool to assess system compatibility for migration.  
  • Analyze existing system configurations, custom code, and usage statistics.  
  • Identify simplification items specific to S/4HANA and assess data volume management.  
  • Evaluate current business processes and align them with S/4HANA best practices.

Infrastructure Analysis

Before moving from SAP ECC to SAP S/4HANA, thoroughly analyze your current infrastructure. Check hardware, software, and networks for potential issues that could affect the migration. Ensure technical feasibility and that the infrastructure meets SAP S/4HANA’s minimum requirements. Address factors like server capacity, memory, disk space, and network bandwidth. Plan for efficient data extraction, transformation, and loading, addressing data quality issues and ensuring consistency during migration.

Pre-production Migration:

Before the actual migration, perform it in a pre-production environment. Choose a Brownfield implementation, upgrading the existing SAP ECC system to SAP S/4HANA. This approach allows data, customizations, and configuration migration while keeping the current system landscape. Assess the SAP ECC system, identify migration areas, use conversion tools, and validate data integrity. The Brownfield approach minimizes disruptions, ensuring a smooth transition.

Cutover Planning:

Develop a cutover plan for the SAP ECC to SAP S/4HANA migration. This involves defining tasks, allocating resources, and establishing timelines. Duties include data migration, testing, system configuration, and end-user training. Communicate effectively with stakeholders and schedule the cutover during minimal business impact, such as a weekend. Post-cutover, conduct system testing, validate data, and promptly address issues. Monitor system performance and handle post-cutover challenges promptly.

By following these steps, you can smoothly and without problems move from SAP ECC to SAP S/4HANA. It ensures a clean transition without losing important data or causing issues with your regular business tasks.

Benefits of Moving SAP to SAP S/4HANA:

Migrating from SAP ECC to SAP S/4HANA brings numerous advantages for businesses:  

  • Modern Technology: S/4HANA uses advanced in-memory technology for faster processing.  
  • User-Friendly Interface: S/4HANA has a modern and easy-to-use design.  
  • Unified Financial Management: It merges finance and controlling modules for simpler processes.  
  • Real-time Analytics: S/4HANA provides immediate inventory tracking and Material Requirement Planning (MRP).  
  • Adaptability: Ensures businesses stay current and flexible to industry changes.  
  • Flexible Deployment: Offers cloud and on-premises options based on business needs.  
  • Efficient Data Management: Streamlines data extraction, transformation, and loading, ensuring data quality.  
  • Simplified Maintenance: Reduces the need for custom code, making maintenance easier.  
  • Unified Business Partners: Mandates Business Partners, streamlining customer and vendor relationships.  
  • Global Trade and Warehouse Management: Improves global trade services and warehouse operations capabilities.  
  • Cost Savings: Long-term savings through efficient operations and reduced maintenance costs.  
  • Future Talent Availability: Early migration ensures easier access to skilled professionals.  

In short, moving to SAP S/4HANA ensures a technologically advanced, user-friendly, and adaptable ERP solution, offering efficiency and flexibility for businesses.


With SAP ending support for ECC by 2027, businesses need to shift to SAP S/4HANA swiftly for a tech upgrade. This move isn’t just about software; it’s a strategic decision for improved efficiency and adaptability. Understanding S/4HANA versions is vital for choosing what suits your needs. The new version isn’t just an update; it’s a high-tech tool with user-friendly design and real-time analyticsReasons to move now include the end of ECC support, rising maintenance costs, and the need to adapt to industry changes. The migration steps focus on assessment, planning, and pre-production testing for a smooth transition. Benefits of S/4HANA include modern tech, a user-friendly interface, unified financial management, real-time analytics, and adaptability. Early migration ensures access to skilled professionals and long-term cost savings. In short, shifting to SAP S/4HANA is more than an upgrade; it’s a chance for businesses to adopt an efficient, modern, and flexible ERP solution, ensuring success in the changing business landscape.

In today’s rapidly changing business landscape, VE3 is committed to empower organizations with the tools they need to thrive. As SAP prepares to end support for ECC by 2027, the urgency to transition to SAP S/4HANA becomes evident. At VE3, we understand the significance of this move and leverage our partnership with SAP to offer diverse solutions to guide organizations through a seamless migration. To know more, explore our innovative digital solutions or contact us directly.


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