WHITE PAPER S/4HANA Migrations: Guiding Principles and Lessons Learned By Matt Montgomery and Kimberley Reid October 20202 Contents Introduction 3 Migration Process - High Level Overview 3 Guiding Principles 3 Principle 1: Build a successful governance plan 4 Principle 2: Manage the hosting provider relationship 4 Principle 3: Have a clear strategy for code remediation 4 Principle 4: Define a security upgrade plan that factors in Fiori 5 Principle 5: Respect the Software Update Manager (SUM) precheck and execution process 5 Principle 6: Build a realistic testing plan 5 Principle 7: Focus on delivering value 6 Key Takeaways 63 Introduction Transitioning from SAP ECC to SAP S/4HANA is often discussed as a technical upgrade and there is a tendency to

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