SAP EWM–TM Integration Using LDAP vs ASR Integration (S/4HANA Guide)

Integration between Extended Warehouse Management (EWM) and Transportation Management (TM) is a critical requirement in modern logistics. With SAP S/4HANA, organizations now have two major integration approaches:

1. ASR – Advanced Shipping & Receiving (New Method)

2. EWM–TM Direct Integration using LDAP / XML Messages (Traditional Method)

This article explains both approaches from a technical configuration perspective, including message flow, trigger points, PPF actions, and monitoring.

𝐀𝐒𝐑 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧:
•- Best for warehouse service scenarios
•- Supports transit warehouse & billing
•- Limited dock & consignment capabilities

𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐓𝐌-𝐄𝐖𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧:
•- Real-time transportation execution
•- Supports complex dock operations
•- Full visibility in single cockpit

Traditional Method: EWM–TM Integration Using LDAP Messages

In older architectures, TM and EWM communicate using LDAP-based XML Web Services.

System Landscape

• Embedded EWM + Embedded TM in S/4HANA

• Or Embedded EWM + Decentralized TM System

Communication happens via SOAP Web Services (XML messages).

Integration Mechanism

Protocol Used: LDAP (Lightweight Directory Access Protocol) via SOAP XML
Message Type: Web Service XML

Monitoring Tcodes:

• SRT_MONI

• SXL_MONITOR

New Method: ASR – Advanced Shipping & Receiving

ASR is the latest integration approach introduced in S/4HANA.

It replaces many LDAP-based processes with tight document synchronization.

Key Benefits of ASR

•  Real-time integration Single source of truth
• No duplicate TU creation
•  Simplified configuration
•  Better yard management integration

LDAP vs ASR – Quick Comparison

When to Use Each Approach

Use LDAP Integration When

• Legacy TM system exists

• Decentralized TM is required

• Older landscape migration in progress

Use ASR When

• New S/4HANA implementation

• Greenfield warehouse

• Need real-time visibility

• Yard Management integration required

Conclusion

Traditional LDAP-based EWM–TM integration still works in many legacy landscapes, but ASR (Advanced Shipping & Receiving) is the future of SAP logistics integration. It offers better performance, real-time synchronization, and simplified architecture in S/4HANA.

For companies implementing smart warehouse automation, ASR is the recommended path.

At SCM-Cloudbook, we provide real-time project-based training on:

• SAP EWM MFS

• SAP TM Integration

• ASR Configuration

• Yard Management

• Warehouse Automation

Become an SAP EWM & TM Expert! Master warehouse management with our seasoned SAP EWM & TM professionals. Join SCM-Cloudbook’s expert-led sessions and elevate your career in the warehouse industry. Click On
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