Connecting Your Warehouse Automation to SAP EWM
A proven methodology for stable, high-performance integration between SAP EWM MFS, WCS, and PLC.
Common Automation Pitfalls
Four critical integration challenges that derail warehouse automation projects
Late Commissioning
Unclear boundaries between EWM, MFS, WCS and PLC cause unstable and non-contractable responsibilities.
Post-Go-Live Instability
Telegram mismatches, missing monitoring, uncontrolled exception handling, insufficient cutover rehearsal.
Performance Constraints
Routing decisions and acknowledgement patterns miss required response times, especially for high-speed case conveyors.
No Single Source of Truth
Communication points, telegram catalogues and error mappings are not centralized, slowing defect resolution.
Business Impact
Reduced throughput and blocked induction
Unplanned manual workarounds
Elongated hypercare
Elevated vendor claims (ambiguity and non-frozen assumptions)
Three Pillars of Stable Automation
Proven approach to warehouse automation connectivity
A Clear Connectivity Blueprint
Testable architecture and contract-ready boundaries with defined ownership across SAP, WCS and PLC
Evidence-Based Commissioning
End-to-end testing, emulation strategy, disciplined cutover planning with performance and exception handling proven before go-live
Tangible Business Benefits
Higher throughput stability, faster incident resolution, lower go-live risk
Integration Architecture Overview
Understanding the automation stack layers
SAP S/4HANA/ERP
Business process orchestration
SAP EWM
Warehouse logic and execution
SAP EWM MFS
Direct shopfloor control via telegrams
Optional WCS
Machine-centric orchestration where required
PLC Layer
Real-time motor and sensor control
MHE Equipment
Conveyors, cranes, robotics, etc.
Integration Patterns
Three proven approaches to connect automation
Pattern A: Direct PLC Integration via SAP EWM MFS
Best for high-speed conveyors and direct control where low latency is critical.
Pattern B: Subsystem Integration via IDoc
Best for robotics or specialized storage subsystems acting as "black box" controllers.
Pattern C: Modern API Integration (REST/HTTP)
Best where automation exposes modern APIs or a broker is part of the architecture.
Level of Control (0–4)
Understanding control depth and decision boundaries
Level 4: Extended Automation
Exception handling, IoT hooks, surrounding process automation
Level 3: Deep SAP Execution
MFS controls routing plus resources like cranes/transfer cars
Level 2: SAP EWM MFS as Controller
Direct PLC connection reduces interface complexity
Level 1: Hybrid Control
SAP owns logical routing, WCS executes
Level 0: WMS Only
WCS owns automation (SAP sends high-level tasks)
Non-Negotiable Rule
The PLC always retains real-time control and safety logic. SAP MFS orchestrates tasks and tracking at defined decision points.
Smarter Warehouse Automation: The Power of Direct PLC Integration
Simplifying architecture for better outcomes
Traditional Approach
SAP EWM → Middleware → PLC (more interfaces, more failure points, higher TCO)
Modern Approach
SAP EWM MFS → PLC (simplified architecture, fewer interfaces, improved stability)
Key Benefits
Reduced costs and complexity
Improved stability and efficiency
Simpler monitoring and administration
Phased Delivery Method
Five phases with quality gates for predictable outcomes
Phase 0: Mobilize & Scope
Define project boundaries, stakeholders, and success criteria
Phase 1: Design & Blueprint
Create integration architecture and communication design
Phase 2: Build & Configure
Implement MFS configuration and PLC integration
Phase 3: Commissioning & Testing
End-to-end testing with emulation and performance validation
Phase 4: Go-Live & Hypercare
Cutover execution and stabilization support
Audit-Proof Catalogue
Comprehensive documentation for stable operations
Blueprint & Design
- Integration architecture and control boundary definition
- Communication point & bin mapping concept
- Telegram catalogue & handshake specification
- Error and exception mapping
Build & Configuration Pack
- PLC/channel/telegram configuration pack
- MFS configuration guide references and setup instructions
- WPT and queue strategy for MFS resources
- Interface testing checklist
Testing & Go-Live
- End-to-end test scenarios & evidence pack
- PLC emulation approach & test plan
- Cutover and week-1 command center runbook
- Monitoring and operations playbook
Service Packages
Flexible options tailored to your automation complexity
S: Connectivity Blueprint
Early phase architecture & contractable boundaries
M: Pilot Connection Setup
Single automation area or MHE line
L: End-to-End Commissioning
Full automation zone with multiple interfaces
XL: Multi-Vendor Rollout Assurance
Large program with multiple vendors/sites/zones
Outcome-Based Benefits
Measurable improvements for your warehouse operations
Reduced Integration Complexity
Fewer interfaces, clean decision-point model
Lower Go-Live Risk
Evidence-based commissioning, emulation, cutover discipline
Higher Throughput Stability
Performance-oriented routing and handshake design
Faster Incident Resolution
Monitor-driven diagnostics and standardized triage
Contractable Vendor Scope
Frozen responsibilities, reduced claims and change requests
Optional Add-Ons
Extend your automation connectivity capabilities
WCS Scope & Vendor Boundary Assessment
What belongs in WCS vs MFS
Routing Logic Deep Dive
High-speed case conveyor performance tuning
Multi-Site Replication Pack
Templates for CP naming, telegrams, error mapping
Automation Go-Live Readiness Audit
Cutover rehearsal evidence, command center setup, monitoring readiness
Frequently Asked Questions
Material Flow System (MFS) is SAP EWM's native automation control layer. It enables direct communication with PLCs via telegrams for real-time warehouse automation control without requiring middleware.
Your Next Step to a Predictable Automation Go-Live
Let's discuss your warehouse automation integration needs
We use cookies
We use cookies and similar technologies to help personalize content, tailor and measure ads, and provide a better experience. By clicking accept, you agree to this, as outlined in our Cookie Policy.