How To Fix /LIME/CORE001 - Dispatcher run &1 is already active

SAP Error Message - Details

• Message type: E = Error

• Message class: /LIME/CORE -

• Message number: 001

• Message text: Dispatcher run &1 is already active

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /LIME/CORE001 - Dispatcher run &1 is already active ?

  The SAP error message /LIME/CORE001 Dispatcher run &1 is already active typically indicates that there is an attempt to start a dispatcher run that is already in progress. This can occur in various scenarios, particularly when dealing with background jobs or processes that are managed by the dispatcher.
  Cause:
  
  Concurrent Execution: The most common cause is that the dispatcher run identified by &1 is already running. This can happen if a previous job has not completed or if there is a misconfiguration that allows multiple instances to be triggered.
  System Configuration: There may be issues with the system configuration that prevent the dispatcher from recognizing that a run is already active.
  User Error: A user may have inadvertently attempted to start the same dispatcher run multiple times.
  
  Solution:
  
  Check Active Dispatcher Runs: Use transaction codes like SM37 (Job Monitoring) to check for any active jobs or dispatcher runs. Look for the job with the identifier &1 to see its status.
  Wait for Completion: If the dispatcher run is still active, you may need to wait for it to complete before attempting to start it again.
  Terminate Stuck Jobs: If a dispatcher run is stuck or taking too long, you may need to terminate it. This can be done through SM37 by selecting the job and choosing the option to cancel or delete it.
  Review Logs: Check the system logs (transaction SM21) for any related error messages that might provide more context on why the dispatcher run is still active.
  System Configuration: Review the configuration settings for the dispatcher to ensure that it is set up correctly and that there are no conflicts that could lead to this error.
  Contact SAP Support: If the issue persists and you cannot determine the cause, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 for job monitoring, SM21 for system logs, and SM50 for monitoring processes.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide specific guidance or fixes for known problems.
  Documentation: Review SAP documentation related to dispatcher management and job scheduling for best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.