Patterns / Integration Architecture
SAP Integration Architecture
A clean-core approach to integrating S/4HANA with the surrounding enterprise estate.
S/4HANA Core
Released APIs & Events
Integration Platform
Extensions
Consumers
Conceptual flow
Problem
Custom code inside the ERP core makes upgrades expensive and integration behaviour opaque.
Context
S/4HANA programmes with significant surrounding application and OT landscapes.
Solution
Keep extensions outside the core, standardise on released APIs and events, mediate through an integration platform, and govern contracts centrally.
Benefits
- Upgrade-safe core
- Transparent interfaces
- Reusable contracts
Risks
- Platform sprawl
- Latency for chatty interfaces
- Shadow integrations
Trade-offs
- Discipline now against upgrade cost later
When to use
- S/4HANA transformations
- Multi-system ERP landscapes
When not to use
- Isolated ERP with no external consumers
Related patterns
Discuss this pattern
How have you applied it — and where did it break? Bring your experience to the community.
Open the discussion