✔️ End of mainstream maintenance – No standard support for ECC applications.
✔️ Innovation freeze – All new SAP capabilities and innovations will be delivered exclusively on S/4HANA.
✔️ Compliance exposure – Security patches, regulatory updates, and legal compliance risk increase significantly.
✔️ Technical debt explosion – Delaying migration compounds custom code issues and integration complexity.

✔️ Evaluate the current landscape: ECC version, DB platform, interfaces, and custom code.
✔️ Define the most efficient migration path: system conversion, selective data transition, or greenfield implementation.
✔️ Prioritize business-critical processes to minimize disruption.

✔️ Identify and adapt custom code using ATC, CVA, and SAP Readiness Checks.
✔️ Move non-core extensions to SAP BTP ABAP Environment to adhere to SAP’s clean core principle.
✔️ Implement side-by-side extensions and SAP Fiori redesigns without cluttering core ERP.

✔️ Maintain full traceability of changes and ATC findings.
✔️ Ensure compliance with SAP guidelines via Usage of APIs check, CCM, and Custom Code Management.
✔️ Reduce the potential for post-migration defects through proven partner accelerators and reusable templates.

✔️ ECC Landscape: 20,000+ custom objects, multiple legacy interfaces.
✔️ Migration Approach: Partner-led sandbox conversion using SUM with DMO, ATC checks, and CVA for code adaptation.

✔️ Outcome:

• ATC findings reduced by 65% before production cutover.
• Key custom extensions migrated to SAP BTP, fully aligned with clean core.
  
• Migration timeline shortened by 9 months, minimizing downtime and operational disruption.
  

This is a proven pattern repeated across multiple industries, demonstrating the critical advantage of leveraging partner expertise over in-house migration attempts.

✔️ Begin planning immediately to mitigate resource constraints and peak migration demand in 2026–2027.
✔️ Minimize legacy exemptions through Custom Code Management (CCM) and Usage of APIs checks.
✔️ Use ATC and CVA results as the baseline for clean core compliance and post-migration audits.

By adhering to these principles, organizations ensure maximum return on migration investment, fully aligned with SAP’s strategic direction.

The 2027 ERP deadline is the defining mandate for all ECC customers. Delays are no longer viable; risks and costs escalate exponentially. Partnering with experts in SAP S/4HANA migration guarantees:

✔️ Reduced ATC findings and technical debt.
✔️ Compliance with clean core and SAP best practices.
✔️ Accelerated adoption of S/4HANA innovations and modern ERP capabilities.

Organizations that act decisively can focus their adaptation efforts on real technical debt, while unlocking the full potential of SAP S/4HANA.

The choice is clear: start your migration now with proven experts, or face compressed timelines, higher costs, and compliance risks in 2027.