S/4 Landscape Map
The complete architecture - modules, layers, integration points. A structural view of the entire S/4HANA landscape.
Architecture Layers
Vertical structure of S/4HANA
Functional Modules
Horizontal breadth - business capabilities
Finance (FI/CO)
CoreSupply Chain (MM/SD)
CoreManufacturing (PP/QM)
CoreHuman Resources
CoreSales & Distribution
CoreProcurement
CoreAsset Management
ExtendedProject Systems
ExtendedCustomer Service
ExtendedIntegration Points
Connectivity patterns and protocols
| Type | Protocols | Primary Use Case |
|---|---|---|
| APIs | REST, OData, SOAP | External system integration, mobile apps, third-party services |
| RFC | Remote Function Call | Legacy SAP system communication, real-time data exchange |
| IDocs | Intermediate Document | Asynchronous data transfer, batch processing |
| SAP BTP | Integration Suite, Event Mesh | Cloud extensions, event-driven architecture, microservices |
| CDS Views | Core Data Services | Data modeling, virtual data models, analytics |
Integration Flow Diagram
┌─────────────┐ API/OData ┌──────────────┐
│ External │◄───────────────────►│ S/4HANA │
│ Systems │ │ Application │
└─────────────┘ └──────────────┘
│
RFC │ CDS Views
┌─────────────┐◄───────────────────────────┤
│ Legacy SAP │ │
│ Systems │ ▼
└─────────────┘ ┌──────────────┐
│ SAP HANA │
┌─────────────┐ IDocs │ Database │
│ Third-Party│◄────────────────────┤ │
│ Apps │ └──────────────┘
└─────────────┘ │
│
Event Mesh │
┌─────────────┐◄───────────────────────────┘
│ SAP BTP │
│ Extensions │
└─────────────┘Dive into functional or technical details