Selecting the right S/4HANA migration path: Key takeaways

28 January 2026 | Enterprise Legacy System Application (ELSA), S/4HANA migration

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Migrating your existing ERP system to S/4HANA is more than a technical upgrade, it’s a transformation that has the potential to reshape how your organisation operates. However, statistics show that 70% of ERP change projects fail to meet their business goals. The primary reason? Selecting the wrong migration approach from the start.

The challenge lies not in choosing between good and bad options, but in identifying the path that best serves your specific business requirements, technical landscape, and transformation objectives.

Data considerations should drive your S/4HANA migration approach selection. Early data discovery reveals critical insights about system complexity, transformation opportunities, and potential risks.

  • Functional lens: Which business processes are moving to S/4HANA versus other solutions?
  • Historical lens: What level of integrated transactional history do you need to maintain?
  • Organisational lens: Which company codes, plants, or organisational units remain active and relevant?
  • Custom data lens: What customisations add value versus complexity to your future system?

Planning for legacy system management should begin with your S/4HANA project, not after completion. Organisations that address legacy system decommissioning as part of their transformation strategy achieve cleaner outcomes and avoid project fatigue.

TJC Group’s ELSA solution enables organisations to preserve access to historical data whilst safely decommissioning legacy systems, supporting compliance requirements whilst reducing ongoing maintenance costs.