Work Breakdown Structure for SAP Migration

Transitioning from SAP ECC to S/4HANA involves several critical steps, each designed to ensure a smooth and successful migration. Here’s a concise overview of the process: 1. Assessment and Planning • Business Case Development: Define the objectives and benefits of moving to S/4HANA. • System Assessment: Evaluate your current ECC environment, including customizations and data volume. • Roadmap Creation: Develop a detailed transition plan, including timelines, budget, and resources. 2. Preparation • Team Formation: Assemble a team of IT professionals, business stakeholders, and external consultants. • Training: Provide education on S/4HANA and the transition process for your project team. • Readiness Check: Utilize SAP Readiness Check to identify compatibility issues and preparatory steps. 3. System Conversion • Data Cleansing: Cleanse and archive data to reduce migration volume. • Custom Code Adaptation: Analyze and adjust custom ABAP code for S/4HANA compatibility. • Add-On Compatibility: Ensure third-party add-ons are compatible with S/4HANA. 4. Technical Migration • Backup Plan: Implement a comprehensive backup and recovery plan. • Infrastructure Preparation: Set up the necessary hardware or cloud infrastructure for S/4HANA. • Database Migration: Transition your database to SAP HANA if not already using it. • Conversion Tools: Use SAP tools like Software Update Manager (SUM) and Database Migration Option (DMO) for the conversion. 5. Data Migration • Mapping and Transformation: Map ECC data structures to S/4HANA and transform data accordingly. • Data Load: Load data into S/4HANA using tools like SAP Data Services or SAP Migration Cockpit. • Validation: Validate and reconcile the migrated data for accuracy. 6. Testing • Unit Testing: Test individual components and customizations. • Integration Testing: Ensure all system components work together seamlessly. • User Acceptance Testing (UAT): Conduct UAT to verify the system meets business requirements. 7. Cutover and Go-Live • Cutover Planning: Develop a detailed cutover plan outlining steps and timeline. • Final Data Load: Perform final data load and reconciliation. • Go-Live Support: Provide hypercare support post go-live to resolve any issues quickly. 8. Post-Go-Live Activities • Performance Monitoring: Continuously monitor system performance and optimize as needed. • User Training: Offer additional training sessions for end-users. • Continuous Improvement: Implement a process for ongoing improvements and leveraging new S/4HANA features. Key Considerations • Change Management: Effectively manage organizational change to ensure smooth transition and user adoption. • Customization Evaluation: Assess the necessity of existing customizations and consider leveraging S/4HANA standard functionalities. • Process Re-engineering: Align business processes with S/4HANA best practices to maximize benefits.

PROJECT PLAN FOR CONVERSION FROM ECC TO S/4HANA Phase 1: Planning (Weeks 1-4) Define project scope, goals, and timeline Identify stakeholders and their roles Develop a detailed project schedule Establish a budget and resource plan Define project governance and decision-making processes SAP Notes: SAP Note 2988192 - SAP S/4HANA Conversion Pre-Check Overview SAP Note 2913617 - SAP S/4HANA Conversion Guide Phase 2: Assessment and Preparation (Weeks 5-12) Analyze current ECC system landscape and identify: Customization and integration points Data quality and cleansing requirements Business process and workflow changes Develop a data migration strategy Set up a test environment for S/4HANA Install and configure S/4HANA sandbox system SAP Notes: SAP Note 2240360 - Simplification Item Check SAP Note 2399707 - Pre-Check for SAP S/4HANA Conversion SAP Note 2333142 - Simplification List for SAP S/4HANA Phase 3: System Setup and Configuration (Weeks 13-20) Install and configure S/4HANA production system Set up organizational structures and master data Configure business processes and workflows Integrate with other systems (e.g., CRM, SCM) Develop customizations (if necessary) SAP Notes: SAP Note 1705836 - SAP S/4HANA Installation Guide SAP Note 2428170 - SAP S/4HANA Configuration and Activation SAP Note 2547308 - SAP Fiori for SAP S/4HANA – Installation and Configuration Phase 4: Data Migration (Weeks 21-28) Migrate data from ECC to S/4HANA using: SAP Data Migration Cockpit SAP LT Replication Server Other tools and methods Validate data quality and integrity Perform data reconciliation SAP Notes: SAP Note 2538700 - SAP S/4HANA Migration Cockpit: Implementation Guide SAP Note 2600030 - SAP LT Replication Server Configuration SAP Note 2287723 - Best Practices for Data Migration to SAP S/4HANA Phase 5: Testing and Quality Assurance (Weeks 29-36) Develop test cases and scenarios Perform: Unit testing Integration testing System testing User acceptance testing (UAT) Identify and fix defects SAP Notes: SAP Note 2072316 - Test Plan and Test Scenarios for SAP S/4HANA SAP Note 2469325 - Guidelines for User Acceptance Testing (UAT) in SAP S/4HANA Phase 6: Deployment and Go-Live (Weeks 37-40) Finalize deployment preparations Execute go-live activities Provide post-go-live support SAP Notes: SAP Note 2568844 - SAP S/4HANA Go-Live Guide SAP Note 2793064 - Post-Go-Live Tasks for SAP S/4HANA Conversion Phase 7: Hypercare and Optimization (Weeks 41-52) Provide hyper care support Monitor system performance Identify optimization opportunities Implement post-go-live enhancements SAP Notes: SAP Note 2370645 - SAP S/4HANA Hypercare Support Strategy SAP Note 2671518 - Optimizing SAP S/4HANA Performance This plan provides a structured approach to managing an SAP ECC to SAP S/4HANA conversion project, with specific SAP Notes to guide each phase.

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.

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.