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Why source-system experience matters
The most common failure point in SAP S/4HANA migrations is not the target system — it is underestimating the source. Data models, customization patterns, integration architectures, and process dependencies differ significantly between SAP ECC, Oracle EBS, Microsoft Dynamics 365, and industry-specific legacy systems. A partner who has only ever worked on the SAP side approaches your migration with incomplete information.
Korcomptenz brings source-system depth across all major ERP platforms Our SAP Migration Services are delivered by teams that have implemented and worked inside the systems your business is migrating from— which means the data mapping, process baseline, and integration redesign are led by people who understand both sides.
21+
of ERP delivery
Accredited
RISE & GROW
Direct CSP
Specialists
Altiaris
Migration paths we run
SAP ECC to SAP S/4HANA
The most common migration path. Brownfield, greenfield, or selective data transformation — chosen based on your customization volume, data quality, and change readiness. The 2027 mainstream support deadline adds urgency, but the right lane choice matters more than the fastest timeline.
- Custom code assessment and clean core roadmap — every Z-object categorized before migration starts.
- Wave-based delivery with KPI acceptance criteria at each milestone.
- BTP extensions for retired customizations — clean core preserved post-migration.
Oracle EBS / JDE / Infor to SAP S/4HANA
Cross-ERP migrations from Oracle require a complete process redesign, not just a data migration. SAP and Oracle have fundamentally different data models for finance, procurement, and inventory. The work is in the translation — and in the organizational change that comes with adopting SAP standard processes.
- Process baseline in Oracle before SAP design starts — documenting what exists before designing what should
- Data model translation — mapping Oracle ledgers, business units, and inventory organizations to SAP equivalents
- Integration redesign — replacing Oracle connectors with SAP-native or BTP-based integrations
Microsoft Dynamics 365 to SAP S/4HANA
Companies on Microsoft Dynamics 365 AX, D365 F&O, or GP typically reach SAP when they outgrow what Microsoft Dynamics 365 can deliver at scale — multi-entity consolidation, complex manufacturing, or regulated industry compliance. Our team has implemented Microsoft Dynamics 365 environments, which means we understand the source system's data model, customisation patterns, and integration landscape from the inside.
- Cross-ERP fit analysis — an honest assessment of where SAP delivers more value and where the transition cost is justified
- Chart of accounts conversion — the most complex, highest-stakes mapping in any Microsoft Dynamics 365-to-SAP migration
- User adoption planning for the Microsoft Dynamics 365-to-Fiori experience shift
Legacy / bespoke ERP to SAP S/4HANA
Homegrown and industry-specific legacy systems often have the most complex data extraction challenges — no standard API, years of undocumented process logic, and master data that has never been formally governed. We have handled these migrations and know where to start.
- Legacy data extraction and profiling — understanding what exists before committing to a migration approach
- Master data governance program — cleaning and standardizing data before it enters SAP
- GROW with SAP as the landing zone — SAP best-practice processes as the clean slate
SAP S/4HANA Migration Approaches
Not every SAP migration to S/4HANA carries the same risk, cost, or return — the approach you choose on day one determines how fast you move, how much debt you carry forward, and how much transformation you actually achieve.
Greenfield
Start with a clean slate. Reimagine processes using SAP best practices, eliminate legacy technical debt, and build an ERP foundation designed for the next decade — not inherited from the last one.
Brownfield
Convert your existing SAP ECC system with continuity intact. Preserve configurations, historical data, and workflows while moving to S/4HANA, the lowest-disruption path when your processes are already optimized.
Bluefield
Take what works, leave what doesn't. Migrate proven processes and critical data while redesigning underperforming ones, a surgical approach that avoids the all-or-nothing risk of Greenfield or Brownfield alone.
Hybrid
Run both playbooks in parallel. Migrate stable business units via Brownfield while greenfielding divisions that need transformation, protecting continuity enterprise-wide without forcing a single strategy on every function.
Our SAP S/4HANA Migration Process
Every decision in your SAP S/4HANA data migration carries downstream consequences — our structured ten-phase process is engineered to protect your investment, compress timelines, and eliminate the surprises that derail enterprise programs.
Readiness Analysis
Using SAP Readiness Check, we score your technical and organizational readiness — giving leadership a clear go/no-go picture before capital is committed.
Architecture Design
We blueprint your target S/4HANA environment — cloud model, sizing, landscape strategy — aligned to your regulatory footprint and five-year growth trajectory.
Data Cleansing
Migrating dirty data multiplies post-go-live incidents. We eliminate duplicate records, obsolete master data, and legacy inconsistencies before a single object moves.
Data Migration
We execute structured, validated object-by-object transfers — with reconciliation checkpoints that ensure financial balances and inventory positions land with 99.5% accuracy.
System Conversion
We run your conversion using SAP's DMO toolset with mock rehearsals, minimizing production downtime to a window your operations team can actually absorb.
Integration
We re-platform IDocs and RFC-based interfaces to modern OData and event-driven APIs — so your third-party ecosystem doesn't become your go-live liability.
Testing
Unit, integration, regression, and UAT cycles run in parallel — not sequence — so defects surface in the sandbox, never on day one of production.
Go-live
We execute cutover during your lowest-traffic window, monitor every critical transaction for 72 hours, and hold stabilization calls until your team signals confidence.
Hypercare
Dedicated post-go-live support — daily health checks, incident triage, and performance tuning — until your new system runs faster than your old one did.
Assessment
We map your ECC landscape, custom code volume, and integration debt to surface the risks your budget and board haven't priced in yet.
What every migration includes regardless of source
01
2-week readiness assessment — source ERP landscape mapped, migration complexity scored, lane recommended
02
Data quality assessment and remediation plan
03
KPI baseline measurement before migration starts — so post-go-live improvement is quantified, not estimated
04
Automated regression testing at every wave
05
Cutover rehearsal — not just a plan, an actual simulation with measured downtime
06
Altiaris deployed at go-live — live business intelligence from day one on S/4HANA
SAP S/4HANA Migration for Industries
SAP S/4HANA Migration for Industries
All about SAP
Frequently Asked Questions (FAQs)
SAP S/4HANA provides a modern ERP foundation with real-time analytics, simplified processes, and improved scalability. Migrating helps organizations streamline operations, enhance decision-making, reduce system complexity, and prepare for future innovation across cloud, AI, and automation initiatives.
Organizations can choose greenfield, brownfield, or selective data transition approaches. The right path depends on business goals, existing SAP investments, process requirements, customization levels, and the desired balance between transformation, speed, cost, and risk.
Project timelines vary based on system complexity, data volumes, integrations, and transformation objectives. While smaller migrations may take months, larger enterprise programs often require detailed planning, testing, change management, and phased deployment strategies.
Common challenges include data quality issues, custom code remediation, integration dependencies, user adoption concerns, and business continuity requirements. A structured migration strategy, governance model, and experienced implementation team help mitigate risks and delays.
Success requires more than technical migration. Organizations should align migration with business objectives, optimize processes, modernize data management, enable user adoption, and establish continuous improvement programs to realize measurable operational and financial benefits.
