In SAP EWM, Labor Management (LM) is used to measure warehouse performance by tracking the workload and activity times of warehouse resources such as pickers and forklift operators.

If warehouse tasks are being executed successfully but labor activity data is not recorded, the issue is usually related to missing labor activity configuration, incorrect resource assignment, or inactive labor management settings.

Below is a practical troubleshooting approach used in real SAP EWM implementations.

 Check If Labor Management Is Activated for the Warehouse

First confirm that Labor Management is activated for the warehouse.

Configuration path:

SPRO → Extended Warehouse Management → Cross Process Settings → Labor Management → Activate Labor Management

Verify:

• Labor management is activated for the warehouse number

• Resource management integration is enabled

If labor management is not activated, the system will not capture workload data.

 Verify Resource Assignment and Resource Type

Labor activities are recorded based on warehouse resources.

Check transaction:

/SCWM/RSRC

Verify:

• Resource exists and is active

• Resource is assigned to correct warehouse

• Resource type is defined correctly

If a user performs tasks without a resource assignment, labor activities will not be tracked.

 Check Labor Activity Configuration

Labor management records workload based on labor activities.

Configuration path:

SPRO → Extended Warehouse Management → Cross Process Settings → Labor Management → Define Labor Activities

Verify:

• Activities such as picking, putaway, replenishment are defined

• Activities are linked to warehouse processes

If labor activities are not maintained, workload tracking will remain empty.

 Verify Activity Assignment to Warehouse Tasks

Labor activities must be linked to warehouse tasks and warehouse process types.

Configuration path:

SPRO → Extended Warehouse Management → Cross Process Settings → Labor Management → Assign Labor Activities to Warehouse Process Types

Check:

• Picking WPT assigned to labor activity

• Putaway WPT assigned to labor activity

If WPT is not linked to labor activities, task confirmations will not generate labor data.

  Check Resource Management Integration

Labor management works together with resource management.

Verify configuration:

SPRO → Extended Warehouse Management → Resource Management

Ensure:

• Resources assigned to queues

• Activity areas defined

• Warehouse tasks executed through resource management

If tasks are confirmed without resource processing, labor tracking may not occur.

 Check Warehouse Monitor

Use the warehouse monitor to verify if labor data is generated.

Transaction:

/SCWM/MON

Navigate to:

Labor Management → Resource Workload

Check whether activity records exist.

If the monitor shows no records, labor activities are not being captured.

  Review Application Logs

If configuration appears correct, review application logs.

Transaction:

SLG1

Suggested objects:

• /SCWM/LABOR

• /SCWM/RSRC

Application logs may reveal missing configuration or processing errors.

 Real Project Scenario

In one SAP S/4HANA Embedded EWM implementation, labor workload reports were empty even though warehouse tasks were executed normally.

Root cause:

Labor activities were configured, but warehouse process types were not assigned to the labor activity configuration.

After linking the correct WPT to labor activities, the system started capturing workload data correctly.

 Recommended Troubleshooting Sequence

When labor workload data is not recorded:

1️⃣ Check if Labor Management is activated
2️⃣ Verify resource creation and assignment
3️⃣ Check labor activity configuration
4️⃣ Assign labor activities to warehouse process types
5️⃣ Verify resource management integration
6️⃣ Check labor data in /SCWM/MON
7️⃣ Review application logs in SLG1

Following this structured approach helps identify the configuration issue quickly.

 Conclusion

If SAP EWM Labor Management is not tracking resource workload, the most common causes are:

• Labor management not activated for the warehouse

• Missing resource assignments

• Labor activities not configured

• Warehouse process types not linked to labor activities

Once these configuration elements are verified and corrected, the system will begin capturing labor workload and performance metrics correctly.