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Migration to SAP S/4HANA: What You Need to Know For 2025

Written by Jatin Oza | January 3, 2025

The shift to SAP S/4HANA is a transformative step for businesses looking to future-proof their operations and embrace innovation. As SAP's next-generation enterprise resource planning (ERP) system, S/4HANA offers unparalleled speed, real-time data insights, and seamless integration capabilities.

However, with SAP's 2027 deadline for ending mainstream maintenance support for its legacy ECC system, the clock is ticking for businesses still relying on outdated platforms. Waiting until the last moment to migrate can lead to operational disruptions and missed opportunities to leverage S/4HANA's full potential.

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Planning your migration strategy now makes the transition smoother while unlocking the benefits of advanced cloud solutions. This guide explores some steps, strategies, and insights to help you confidently navigate your journey to SAP S/4HANA.

Quick Takeaways

● SAP will end ECC mainstream maintenance support in 2027, making early planning for migration to S/4HANA essential.
● SAP S/4HANA offers real-time data processing, seamless integration, and scalability to meet modern business needs.
● Businesses can choose from Big Bang, Phased, or Selective Data Transition strategies based on their unique requirements.
● Preparing in 2025 for the upcoming business transformation with your specific business case allows you to gradually adopt the innovation and realize optimal return on investment. 
● Partnering with experienced providers like Protera ensures that customers can smartly plan their returns on investments, get better organized with data volume management, SAP BTP roadmap and transformation strategy, and ongoing support post-implementation.

SAP as a Cloud Provider

SAP S/4HANA is a next-generation enterprise resource planning system that will streamline and transform business operations. Unlike its predecessor, ECC (SAP ERP Central Component), S/4HANA is built on the in-memory SAP HANA database, allowing it to process large volumes of data in real-time.

This design means businesses can make faster, data-driven decisions and gain instant insights into their operations. In addition, S/4HANA offers a simplified data model and enhanced user experience through Fiori, SAP's modern interface.

Migrating to S/4HANA brings numerous benefits:

  • The system's real-time data processing capabilities improve performance and efficiency.
  • Its advanced integration features enable seamless connections with other SAP and third-party applications, fostering a unified IT ecosystem.
  • S/4HANA provides scalability so businesses can adapt as their needs grow.

Deployment Options


Businesses can deploy S/4HANA in three ways:

  1. On-premises: On-premises deployments offer complete control over data and systems but may require significant infrastructure investment.
  2. In the cloud: Cloud deployments provide flexibility, lower upfront costs, and faster implementation but may depend on third-party data hosting.
  3. As a hybrid model: Hybrid deployments combine the best of both, balancing control
    and scalability.

Each option allows businesses to tailor their migration to fit their unique requirements.


Choosing a Transformation/Migration Partner

Transforming to SAP S/4HANA is a complex process that involves implementing HANA as a DB platform, transforming data, configuring systems, and figuring out how to minimize disruption to daily operations. Without the right expertise, businesses can face unexpected challenges like disruptive process adjustments, data inconsistencies and prolonged downtime.

As a result, partnering with an experienced migration specialist is crucial. A trusted partner simplifies the migration process and provides the support you need, helping you navigate technical hurdles and smoothly transition.

Criteria for Selecting a Partner

When choosing a migration partner, prioritize those with proven experience in SAP S/4HANA migrations. Look for providers with a strong track record of successful projects and customer testimonials demonstrating their reliability.

A good partner will also offer post-migration support and training, so your team can maximize the benefits of S/4HANA after implementation.

 

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Transformation/Migration Strategies to SAP S/4HANA

As you gather information on SAP S/4HANA, you'll notice there are multiple transformation/migration strategies. Here are some options you should know about:

Big Bang Approach (Brownfield)

The Big Bang strategy involves migrating your entire system to SAP S/4HANA at once. This speedy approach allows you to begin leveraging S/4HANA's full capabilities immediately after the migration.

However, it comes with higher risks, such as potential downtime and unforeseen issues, making it a better fit for smaller organizations or businesses with simpler IT systems.

Phased Approach (Greenfield)

The Phased Approach involves migrating in stages, focusing on specific modules, functions, or locations over time. This gradual process minimizes disruption to daily operations and allows for thorough testing and adjustments at each step.

While it takes longer to complete, this strategy reduces risks and is ideal for larger businesses or those with complex systems.

Selective Data Transition (Bluefield)

In this approach, only essential data is migrated to SAP S/4HANA, leaving behind obsolete or unnecessary information. This strategy works well for organizations with extensive, complex datasets because it streamlines the new system and helps you avoid unnecessary data transfer costs.

Choosing the Right Strategy for Your Business

Factors like business goals and planned roadmap of transformation,your company's size, the customizations, complexity of business processes, data volume, tolerance for downtime will influence the best approach. Carefully assess your needs and consult with transformation/migration experts to figure out the best strategy for a successful transition.

Planning for Operations After Transformation/Migration

A successful transformation/migration to SAP S/4HANA doesn't end with implementation. Careful planning for post-migration operations makes long-term success more likely and maximizes the new system's benefits.

Post-Migration Testing and Optimization

After transformation/migration, you'll need to go through some rigorous testing to confirm that the system is stable and functioning as expected. Start with end-to-end testing across all processes to identify and resolve any issues.
Optimization should focus on fine-tuning system performance, such as adjusting configurations and streamlining workflows to enhance efficiency. Regular monitoring and feedback loops can help maintain optimal performance as your business grows.

Employee Training and Organizational Change Management

Employees must know how to use the new system. Invest in comprehensive training programs that show your team how to use S/4HANA's features and capabilities.

Organizational Change management is equally important, as you'll need to communicate the benefits of the migration, address concerns, and involve key stakeholders in the process. The result is a smooth transition and strong adoption across the organization.

Ongoing Maintenance and Support

Establishing a strong support framework makes it easier to address technical issues and the entire system more reliable. Work with SAP or certified partners to access regular updates and leverage SAP's extensive ecosystem for continuous improvement.

With proper maintenance and proactive support, your business can take full advantage of SAP S/4HANA and its features.

Your SAP S/4HANA Transformation/Migration

The migration to SAP S/4HANA is not just a technical upgrade; it's a strategic move to future-proof your business. With the 2027 deadline for ECC support fast approaching, you don't have much time to wait. Delaying could lead to operational disruptions and missed opportunities to leverage the advanced capabilities of S/4HANA.

Successful transformation requires careful planning, selecting the right strategy for your unique needs, and partnering with an experienced provider. Whether you choose a Big Bang or phased approach, having a reliable partner like Protera can make all the difference in a smooth and efficient transition.

Proactively plan your migration to stay ahead of the competition and position your business for long-term success. Contact Protera today to start planning your journey to SAP S/4HANA.