ECC to S4HANA Conversion - Brownfield Implementation
Syllabus
- ECC to S4/HANA Conversion - Brownfield Approach
- Planning for S4/HANA Conversion
- Readiness Check
- SI Check
- CVI and Document Splitting
- Custom Code Migration
- Planning for downtime
- Technical Migration (DMO with/without System Move)
- Post installation activities (ABAP+Basis)
- Finance Migration
- Go Live
ECC to S/4HANA - Program overview and learning outcomes- Role of SAP Basis in ECC to S/4HANA brownfield conversion
- Conversion vs. release upgrade vs. greenfield implementation
- Brownfield, greenfield, bluefield, and selective data transition
- Typical conversion phases and Basis deliverables
- Tools: Maintenance Planner, Readiness Check, DMO, SUM, SAP for Me
ECC to S/4HANA - Conversion landscape and prerequisites- Supported ECC source releases and target S/4HANA versions
- Unicode requirement and code page considerations
- SAP HANA sizing and hardware prerequisites for conversion
- LMDB, Solution Manager, and landscape documentation
- Sandbox / PoC system strategy (copy from PRD or QAS)
- High availability, DR, and conversion sequencing (DEV -> QAS -> PRD)
ECC to S/4HANA - Project planning and conversion strategy- Planning for S/4HANA conversion (project structure and milestones)
- DMO with System Move vs. DMO without System Move
- Shell conversion vs. in-place / database migration patterns
- Downtime vs. near-zero downtime conversion (overview)
- Conversion runbook, rollback, and fallback planning
- Coordination with functional, finance, security, and infrastructure
- Go/No-Go criteria and cutover checkpoints
ECC to S/4HANA - Software logistics and Maintenance Planner- Maintenance Planner: conversion plan and download basket
- Stack XML for conversion and dependency validation
- DMO media, SAP Host Agent, and installation paths
- License keys and entitlements for S/4HANA
- Export control, checksums, and download verification
ECC to S/4HANA - Readiness Check and simplification inventory- Running Readiness Check and interpreting results
- SI check and Simplification Item catalog (Basis perspective)
- Current system inventory: ECC release, SP, kernel, database
- SAP Note implementation for conversion path
- Pre-conversion backup and recovery verification
ECC to S/4HANA - Source ECC system preparation- Housekeeping: spool, jobs, logs, disk space
- Consistency checks: ST22, SM21, database checks
- Deactivating interfaces and RFC destinations before cutover
- User, batch job, and customizing freeze strategy
- Transport freeze and import order before conversion
- Planning for downtime (technical vs. business window)
ECC to S/4HANA - SAP HANA target database preparation- HANA installation or revision alignment for target S/4HANA
- HANA backup, recovery, and snapshot concepts before DMO
- Memory, tenant, and parameter checks for migration
- hdblcm and database connectivity prerequisites for DMO
ECC to S/4HANA - DMO and SUM fundamentals- DMO architecture and supported conversion scenarios
- SUM phases in conversion context (PREPARE, MIGRATE, UPGRADE)
- Key DMO and SUM parameters (overview)
- SUM/DMO directory structure, logs, and trace files
- Resuming, restarting, and abort handling during DMO
ECC to S/4HANA - CVI, Business Partner, and document splitting- CVI and Business Partner conversion (overview for Basis)
- Document splitting - awareness and Basis prerequisites
- Master data migration validation support
- Coordination with functional team during CVI activities
ECC to S/4HANA - Custom code migration and simplification- Custom Code Migration - analysis tools (RC_COLLECT, ATC overview)
- Simplification database and blocked transactions (Basis view)
- SPDD/SPAU and modification adjustment (overview)
- Third-party add-on and industry solution compatibility
ECC to S/4HANA - Finance migration overview- Finance migration and Universal Journal (overview for Basis)
- Finance Migration Cockpit - role split functional vs. Basis
- Basis tasks during finance migration window
- Post-migration finance validation support
ECC to S/4HANA - Technical migration execution (DMO)- Technical Migration (DMO with / without System Move)
- Database migration execution and monitoring
- Create sandbox (PoC) system by copying PRD VM (lab context)
- Immediate post-DMO technical verification steps
ECC to S/4HANA - Post-conversion technical tasks (Basis)- Post installation activities (ABAP and Basis)
- System start sequence, profiles, and services
- Kernel switch, SPAM/SAINT, and sapcontrol verification
- RFC, HTTP, and SSO smoke tests
- Transport domain, client settings, batch jobs, and spool recovery
ECC to S/4HANA - Go-live and cutover- Go Live - technical cutover sequence
- Dress rehearsal and mock cutover (overview)
- Early hypercare monitoring and escalation
- Stabilization period Basis tasks
ECC to S/4HANA - Security, integration, and Fiori after conversion- Authorization and role regression after conversion
- Trusted RFC, SSO, and gateway security checks
- PI/PO, IDoc, and background RFC verification
- Fiori launchpad, Gateway, and OData activation checks
- Performance monitoring: ST03N and HANA SQL (overview)
ECC to S/4HANA - Troubleshooting conversion errors- Reading SUM/DMO logs and common error codes
- Space, permission, version, and compatibility failures
- HANA migration-specific troubleshooting patterns
- Restore from backup and rollback decisions
- SAP Notes search and SAP Support escalation
ECC to S/4HANA - Documentation, audit, and hypercare- Conversion protocol and audit evidence
- LMDB, CMDB, and runbook updates
- Change records and CAB alignment
- Handover to AMS / hypercare team
ECC to S/4HANA - Hands-on labs and assessment- Lab: Readiness Check results review
- Lab: Maintenance Planner conversion stack
- Lab: DMO prepare phase walkthrough
- Lab: Post-conversion startup checklist
- Lab: DMO/SUM log analysis exercise
- Knowledge check: DMO options, phases, Basis checklist
- Capstone: brownfield conversion runbook for one landscape
