How To Fix EH049 - Mass activity &1 &2, started by &3 is already active

EH049 - Overview

• Message type: E = Error

• Message class: EH - Messasge class for disconnection and reconnection

• Message number: 049

• Message text: Mass activity &1 &2, started by &3 is already active

What causes this issue?

Only one individual mass run at a time can be started for mass activity
&v4&. The mass run started by user &v3&, with date ID &v1& and
identification &v2& is currently running. This means that you cannot
schedule your mass run at the moment.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Wait until the active mass run has finished.

Procedure for System Administrators

If the above-mentioned mass run is terminated without unlocking the
mass activity type, you can remove the lock by choosing <ls>Environment
-> Unlock Mass Act.Type</>.

Error message extract from SAP system. Copyright SAP SE.

EH049 - Details

• The SAP error message EH049 indicates that a mass activity (such as a mass change or mass processing task) is already active and cannot be started again until the current instance is completed. This error typically occurs in the context of mass processing functions in SAP, where multiple users or processes may attempt to execute the same mass activity simultaneously.
  
  Cause:
  
  Concurrent Execution: The most common cause of this error is that the mass activity you are trying to initiate is already running. This can happen if another user or process has started the same mass activity.
  Long-Running Processes: If the previous instance of the mass activity is taking longer than expected to complete, it may still be active when you attempt to start it again.
  System Locking: SAP may have internal locks that prevent the same mass activity from being executed multiple times concurrently.
  
  
  Solution:
  
  Check Active Processes: Use transaction codes like SM37 (Job Monitoring)