About Me
Welcome to the homepage of Mike König-Lehmann, your Senior Cutover Manager with over 20 years of SAP experience.
Specialised in cutover management for S/4HANA greenfield and brownfield transformations across the DACH region. I plan and lead your cutover — from strategy through master plan and runbook to mock cutover, dress rehearsal, and hypercare. Industries: FMCG, Retail, Utilities, Automotive, Chemicals.
- Name:Mike König-Lehmann
- Address:Der Temnitz 50 • 14776 Brandenburg, Germany
- Degree:Diplom-Ingenieur (FH), equivalent to M.Sc. in Computer Science
- Certified:SAP S4H00/S4H02, PMP Methodology, Scrum Master, Requirements Writing
- E-mail:
- Phone:+49 151 22373061
Services
Cutover management for SAP S/4HANA transformations. The cutover is the most critical phase of any SAP transformation. Within days, it is decided whether years of preparation lead to a controlled go-live — or to a crisis. I plan, manage, and own this process.
Cutover Strategy
- Selection of the appropriate strategy: Big Bang, Phased Go-Live, Parallel Run, or Pilot
- Substantiated decision proposal for steering committee and management
- Risk assessment per strategy option
Cutover Concept & Master Plan
- Fully drafted cutover concept including phase structure (Prepare → Explore → Realize → Deploy → Run)
- Master plan with predecessor logic, critical path, and workstream aggregation
- Consolidation of sub-cutover plans from the business departments
Runbook Creation
- Workstream-specific runbooks (R2R, P2P, O2C, EWM, MDM, Basis)
- Click-by-click execution guide for the cutover weekend
- Validation steps and documentation paths per step
Mock Cutover & Dress Rehearsal
- Design and execution of 2-3 mock cutovers
- Measured task durations to calibrate the cutover window plan
- Final dress rehearsal as the dry run
Fallback & Rollback
- Defined rollback paths for each critical task
- Cutover Command Center with escalation matrix for the go-live weekend
- Ensuring business continuity
Hypercare Management
- Ramp-up planning for the first 30 days after go-live
- Shift and resource plan for the cutover weekend and hypercare
- Handover to line organisation
Methodology
My approach follows a proven 4-phase model that I adapt to each project situation:
Phase 1 — Cutover Conception
- Typically 4-8 weeks
- Strategy, phase structure, workstream cluster
- Timeline and risk assessment
Phase 2 — Detailed Planning
- Typically 6-12 weeks
- Master plan and workstream runbooks
- Fallback concept and tool setup
Phase 3 — Dry Run
- Typically 4-6 weeks
- 2-3 mock cutover runs and dress rehearsal
- Go/no-go decision template
Phase 4 — Cutover & Hypercare
- Typically 4-6 weeks
- Live management in the Cutover Command Center
- Handover to line organisation
Engagement Models
Depending on the project phase and need, I offer four engagement models:
End-to-End Cutover Manager
- Full responsibility from concept to hypercare handover
- Typically 9-15 months engagement
Cutover Lead for One Phase
- Taking over a single cutover phase
- e.g. master plan creation or mock cutover execution
Cutover Advisory / Coaching
- Supporting an internal cutover team
- Workshops, reviews, and sparring
Sub-Contractor
- Specialist role in consulting projects
- Available for SAP consulting partners
Industry Expertise
Over two decades of SAP consulting in regulated and non-regulated industries — from automotive suppliers and premium retail to energy utilities.
FMCG
- Consumer goods and production logistics
- S/4HANA greenfield transformation, 13 workstreams
Retail
- Premium retail, POS, and e-commerce
- Migration from non-SAP legacy to S/4HANA
Utilities
- Regulated energy market
- Feed-in and supply processes
Automotive
- OEMs, suppliers, and spare parts logistics
- Program management, SAP harmonisation
Chemicals
- Master data management and IT service catalog
- Procurement process harmonisation
Reference Projects
A selection of recent cutover engagements from the last three years. Further details and client references are available on request.
FMCG · 2025–2026
- Leading German tea manufacturer
- S/4HANA greenfield transformation
- End-to-end cutover management — strategy, master plan, runbooks, mock cutover, hypercare
- 13 workstreams · ~860 tasks master plan · ~1,750 tasks runbook
Retail · 2023
- Premium retailer with flagship stores
- S/4HANA greenfield with migration from MS Dynamics AX
- Consolidation of 10 sub-cutover plans into one master plan
- 10 business areas · non-SAP legacy migration · data model mapping
Utilities · 2024–2025
- Regulated energy corporation (electricity)
- Release and test management for AXON IVY portal integration with S/4HANA
- Cutover coordination per release including hypercare
- 22 months engagement · multi-release cutover · 3 surrounding systems
Methods & Tools
A compact overview of the key methodologies and tools from my daily work. Selection always depends on the project.
Methodologies
- PMP project management
- SAP Activate Methodology
- Scrum, hybrid project management
- BPMN 2.0, Requirements Engineering
- Fit-gap analysis, business analysis
Cutover Tools
- MS Project, Smartsheet
- SAP Solution Manager
- Excel, ThinkCell, Lucid
Collaboration & Tracking
- JIRA, Confluence
- MS Teams, SharePoint
- BMC Remedy
SAP Technologies
- S/4HANA, ECC, EWM, PPM
- LSMW, SAP Migration Cockpit
- ALE/IDoc, EDI, OData, RFC
- ABAP, ABAP OO
Process Modeling
- Signavio Process Editor
- Symbio
- MS Visio
Qualifications
Academic education and current certifications.
Academic Education
- 1998–2005 · Computer Science studies at Brandenburg University of Applied Sciences · Diplom-Ingenieur (FH), equivalent to M.Sc.
- 2004 · Semester abroad at Blekinge Institute of Technology, Sweden
Certifications
- 08/2025 · SAP Basics S4H00/S4H02
- 12/2020 · Certificate of Completion PMP Exam Prep Seminar
- 12/2018 · Requirements Writing (University of Sydney)
- 01/2018 · Scrum Master (Agile Project Management)
Languages
- German · Native speaker
- English · Fluent (C1, international projects in UK, Switzerland, France)
- Russian · Swedish · Basic knowledge
Engagement
- Chairman · Sportfreunde Brandenburg 94 e.V.
- Juror, BraIn Innovation Award at THB Brandenburg an der Havel · 2023–2026
