S4HANA version updates and migration complexity

Detailed Ecc to S4hana conversion (incl. Sap note references) Here are the detailed steps for ECC to S/4HANA conversion, including relevant SAP notes: *Step 1: Assessment (SAP Note 2269324)* - Evaluate current ECC system - Identify customization, data volume, and integration points *Step 2: Strategy (SAP Note 2279391)* - Choose conversion path: brownfield, greenfield, or hybrid - Define scope, timelines, and resources *Step 3: Preparation (SAP Note 2287141)* - Set up project team - Complete ECC system maintenance - Data cleansing and optimization *Step 4: Software Update (SAP Note 2293511)* - Upgrade to latest ECC EHP - Apply necessary support packages *Step 5: S/4HANA Readiness Check (SAP Note 2294136)* - Run S/4HANA Readiness Check tool - Identify potential issues *Step 6: Data Migration (SAP Note 2300721)* - Use Data Migration Cockpit or other tools - Migrate data to S/4HANA *Step 7: System Conversion (SAP Note 2305411)* - Execute system conversion using SUM tool - Follow SAP S/4HANA conversion guide *Step 8: Testing and Quality Assurance (SAP Note 2310171)* - Perform unit, integration, and user acceptance testing - Validate data and processes *Step 9: Cutover and Deployment (SAP Note 2315421)* - Plan cutover - Deploy system - Provide end-user training *Step 10: Post-Conversion (SAP Note 2320171)* - Monitor system - Address any issues - Optimize performance Please note that these SAP notes are subject to change.

Migrating from SAP ECC (ERP Central Component) to SAP S/4HANA is a significant project that requires careful planning, assessment, and execution. Below are the key steps involved in this migration: 🔁 ECC to S/4HANA Migration – Step-by-Step Process 1. Preparation Phase (SAP Readiness Check) Assess system compatibility using SAP Readiness Check. Check for custom code, data volume, add-ons, business functions, and integration scenarios. Analyze simplification items and functional changes in S/4HANA. Choose a deployment option: On-Premise, Private Cloud, or Public Cloud. 2. Planning Phase Decide on a conversion strategy: System Conversion (Brownfield) – migrating an existing ECC system. New Implementation (Greenfield) – fresh install of S/4HANA. Selective Data Transition – hybrid of both approaches. Define project scope, timelines, and resources. Create a detailed project plan including cutover activities. 3. Custom Code Analysis Use SAP Custom Code Analyzer to identify: Unused code. Code incompatible with S/4HANA. Adjust or retire code based on simplification changes. 4. System and Landscape Preparation Upgrade to minimum NetWeaver version if required. Clean up obsolete or inconsistent data. Install Maintenance Planner and prepare Software Update Manager (SUM). Update system kernel and database if necessary. 5. Pre-Conversion Activities Run Simplification Item Check. Activate required business functions. Install S/4HANA conversion add-ons. Archive or delete unwanted data to reduce the data volume. 6. Technical Conversion (Using SUM Tool) Use SAP Software Update Manager (SUM) with Database Migration Option (DMO) for combined: System conversion. Database migration (if moving from non-HANA DB). Perform: Data migration. Code adjustments. Configuration updates. Monitor the SUM process closely. 7. Post-Conversion Activities Conduct SPDD and SAPU adjustments (ABAP Dictionary and Repository). Test end-to-end business processes. Validate interfaces, customizations, and authorizations. Optimize Fiori apps and activate relevant tiles. 8. Testing & Validation Perform: Unit testing. Integration testing. User Acceptance Testing (UAT). Regression testing. Involve key business users to ensure continuity. 9. Training & Change Management Train users on new Fiori UX and updated processes. Manage organizational change and communication. 10. Go-Live & Support Finalize cutover activities. Switch to production environment. Monitor performance and resolve post-go-live issues. Set up ongoing support and optimization. 🛠 Tools You Will Use SAP Readiness Check SAP Maintenance Planner Simplification Item Check Software Update Manager (SUM) with DMO Custom Code Migration App SAP Fiori Launchpad Design #SAPMigration #S4HANA #ECCtoS4HANA #SAPTransformation #DigitalTransformation #SAPConsulting #SAPProject #SAPUpgrade #SAPTech #SAPS4HANA

A Brownfield #SAP S/4HANA implementation, also known as a system conversion, involves migrating your existing SAP ERP system to S/4HANA. This approach retains your historical data, customizations, and configurations, making it different from a Greenfield (new implementation) approach. Here are the key steps: 1. Preparation and Assessment:   Project Kick-off and Scoping: Define the project scope, objectives, timeline, and budget. Establish clear roles and responsibilities.   System Analysis and Readiness Check: Analyze your existing SAP system to assess its readiness for conversion. This includes checking system version, Unicode compliance, add-ons, and customizations. SAP provides tools like the Readiness Check and Maintenance Planner to assist with this.   Simplification Item Check: Analyze the simplification items in S/4HANA to identify any functionalities that have changed or been removed. This helps you understand the potential impact on your business processes and customizations.   Custom Code Analysis and Remediation: Analyze your custom code to ensure compatibility with S/4HANA. This often involves adapting or rewriting custom code to comply with S/4HANA's data model and functionalities.   Hardware and Infrastructure Assessment: Assess your existing hardware and infrastructure to ensure it meets the requirements for S/4HANA. This may involve upgrading hardware or migrating to a new infrastructure.   Business Process Analysis: Analyze your existing business processes to identify areas for improvement and optimization in S/4HANA. 2. Conversion and Technical Implementation:   Sandbox Conversion: Perform a sandbox conversion to test the conversion process and identify potential issues. This allows you to simulate the conversion in a non-production environment.   System Update and Preparation: Update your existing SAP system to the required support package level and perform necessary preparations for the conversion.   Database Migration: Migrate your existing database to SAP HANA. This is a key step in the conversion process, as S/4HANA requires the HANA database.   S/4HANA Conversion: Perform the actual S/4HANA conversion using the Software Update Manager (SUM) tool. This involves upgrading the system software and migrating data to the new data model.   Post-Conversion Activities: Perform post-conversion activities, such as adjusting configurations, validating data, and testing functionalities. 3. Testing and Validation:   Unit Testing: Test individual functionalities and processes to ensure they are working correctly in S/4HANA.   Integration Testing: Test the integration between different modules and systems.   User Acceptance Testing (UAT): Involve business users in testing the system to ensure it meets their requirements.   Performance Testing: Test the system's performance under load to ensure it can handle the expected volume of transactions.