Greenfield gives you a clean slate and the chance to adopt SAP best practice; brownfield preserves history and customization at the cost of some technical debt. We break down the decision criteria — data volume, customization depth, timeline, and risk appetite — that should actually drive the choice.
Complete re-implementation. Standardizes processes to clean-core SAP best practices while shedding legacy technical debt.
System conversion. Retains existing configuration, custom code, and historical transaction data with minimal business disruption.
Evaluating Your Customization Depth
Organizations with decade-old ECC systems often find that up to 60% of their custom Z-tables and modifications are no longer in active use. A Greenfield approach acts as an operational reset button, enforcing clean-core architecture and reducing long-term maintenance overhead.
"The migration path decision isn't just an IT upgrade—it's a strategic determination of how closely your operations align with standard enterprise workflows."
Key Decision Criteria
- Historical Data Needs: Does your regulatory or operational framework require full historical transactional depth immediately accessible?
- Process Standardization: Are business units willing to adapt to SAP standard workflows, or are proprietary custom processes essential?
- Downtime Tolerance: Can the business accommodate a phased rollout (Greenfield) or does it require a single cutover weekend (Brownfield)?
