SAP S/4HANA Migration.
Accelerating innovation on SAP S/4HANA safely and cost-effectively. With Westernacher’s Innovate on Brownfield Migration.
Most companies want to benefit from SAP S/4HANA – but not at the price of long projects, major redesigns or operational risk. With Westernacher’s Innovate on Brownfield, you gain a modern digital core quickly, safely and without reinventing everything from scratch.
You keep what works. You modernize what matters. And you innovate where it drives real value.
You keep what works. You modernize what matters. And you innovate where it drives real value.
“Innovate on Brownfield” – a smarter way to transform.
Instead of choosing between an expensive Greenfield re implementation or a purely technical Brownfield conversion, we combine the best of both worlds:
A fast technical migration – plus real innovation.
We bring you to SAP S/4HANA quickly and securely, while simultaneously opening the door to improvements that create immediate impact.
You benefit from:
- minimal disruption to the business,
- a modern clean‑core foundation,
- targeted innovations during or right after the migration.
The benefits you can expect.
Your organization gains tangible business value from day one:
Economic & Operational Benefits
- lower TCO compared to Greenfield
- early ROI through quick wins
- real‑time MRP, ATP and analytics
- a unified digital supply chain
Strategic & Cultural Benefits
- readiness for AI & automation
- modern Fiori UX and embedded help
- higher user adoption and collaboration
- foundation for new business models
A practical roadmap for innovation.
Your journey does not stop with the technical migration – it starts there.
Quick Wins
Short implementation cycles to unlock rapid value:
- Fiori activation
- embedded analytics
- predictive MRP
- process improvements
first 3–6 months
Advanced Innovations
Scaling new capabilities:
- SAP EWM/ SAP TM
- SAP IBP for planning
- Success Factors integration
- advanced SAP Analytics Cloud (SAC) analytics
6–12 months
Strategic Transformation
Driving long term excellence:
- Digital Manufacturing Cloud
- sustainability & footprint management
- AI/ML use cases
- clean‑core initiatives & BTP innovations
12+ months
Kick off your transformation in just four weeks.
Our structured start helps you make confident decisions right from the beginning. This is what happens in the first month:
strategy, process and architecture discovery
readiness checks & technical assessments
identification of innovation potential
creation of your tailored migration roadmap
first value case & business case outline
You walk away with clarity, transparency and a realistic plan.
The most valuable innovations after a Brownfield migration.
Not every innovation is right for every company. We focus on what moves the needle:
Finance
- Group Reporting
- real-time analytics
- intelligent planning
Supply Chain & Manufacturing
- DDMRP & predictive MRP
- ePPDS / CPS
- DMC shopfloor integration
- warehouse automation with SAP EWM
Procurement & Sales
- Ariba sourcing
- Lead‑to‑Order improvements
- demand forecasting & revenue planning
User Experience & Analytics
- Fiori role-based UX
- SAP Analytics Cloud dashboards & predictive insights
Challenges in a Brownfield conversion.
We guide you through the critical questions:
- How much HANA capacity is needed?
- Which add-ons are compatible?
- Which simplification items apply?
- What custom code can be removed?
- How do we ensure efficient testing?
With our methodology, nothing falls through the cracks.
Enhancing your transformation with SAP LeanIX, SAP Signavio and SAP Cloud ALM.
We use a digital twin of your processes, systems and architecture to give you full transparency:
- automated process discovery
- architecture & dependency mapping
- scenario simulation
- value-driven prioritization
- lifecycle and governance tracking
This ensures your roadmap is not only strategic – it is executable.
How Westernacher supports you throughout the journey.
From preparation
to go live to continuous innovation.
We support you end to end.
Before Migration
1
- Business Partner, New GL, New AA
- data, interface & custom code assessment
- clean core analysis
- readiness checks
- sizing & architecture planning
During Migration
2
- SUM/DMO conversion
- simplification item resolution
- custom code remediation
- testing & training
- change management
After Migration
3
- Quick wins implementation
- innovation roadmap execution
- AI/Joule enablement
- clean core projects
- AMS & continuous improvement
Why Westernacher?
Because you need a partner who can modernize your SAP landscape without putting your business at risk.
You benefit from:
- deep SAP & industry expertise
- leading capabilities in Supply Chain, Manufacturing & Finance
- a proven methodology based on SAP Activate
- fact-based decision-making through SAP LeanIX & Signavio
- innovation that scales with your business
We help you transform with confidence – and convert your SAP S/4HANA migration into a true competitive advantage.