How To Fix WGDS_PROCESS669 - Report is already running in daemon mode

SAP Error Message - Details

• Message type: E = Error

• Message class: WGDS_PROCESS - Global data synchronisation

• Message number: 669

• Message text: Report is already running in daemon mode

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WGDS_PROCESS669 - Report is already running in daemon mode ?

  The SAP error message WGDS_PROCESS669: Report is already running in daemon mode typically occurs when you try to start a report or process that is already running in the background (daemon mode). This message is a safeguard to prevent multiple instances of the same report/process from running simultaneously, which could lead to data inconsistencies or system performance issues.
  
  Cause
  
  The report/process you are trying to execute is already active in daemon mode.
  The system detects an existing instance of the report running in the background.
  This can happen if a previous execution did not terminate properly or is still processing.
  It may also occur if the report is scheduled as a background job or daemon and you attempt to start it manually again.
  
  
  Solution
  
  
  Check Running Instances:
  
  Use transaction SM37 (Job Monitoring) to check if the report is running as a background job.
  Look for jobs with the same report name and check their status (Active, Scheduled, Finished).
  
  
  
  Wait for Completion:
  
  If the report is currently running, wait until it finishes before starting a new instance.
  
  
  
  Cancel or Delete Stuck Jobs:
  
  If the job is stuck or running longer than expected, consider canceling or deleting it via SM37.
  Be cautious and ensure that canceling the job will not cause data inconsistencies.
  
  
  
  Check Daemon Processes:
  
  Some reports run as daemon processes (long-running background processes).
  Use transaction SM50 or SM66 to check active work processes and see if the daemon is still running.
  
  
  
  Restart the Daemon Process:
  
  If the daemon process is stuck, you may need to restart it.
  This might require basis team involvement to safely stop and restart the daemon.
  
  
  
  Check for Lock Entries:
  
  Sometimes lock entries related to the report/process can cause this issue.
  Use transaction SM12 to check and delete any stale lock entries if appropriate.
  
  
  
  Review Report Logic:
  
  If this happens frequently, review the report’s logic to ensure it handles daemon mode execution properly.
  Implement checks in the report to prevent multiple instances from starting.
  
  
  
  
  Related Information
  
  Daemon Mode: In SAP, daemon mode refers to a report or process running continuously or in the background, often waiting for events or processing data asynchronously.
  WGDS_PROCESS669 is a message class related to workflow or background processing.
  SM37, SM50, SM66, SM12 are key transactions to monitor jobs, work processes, and locks.
  Basis team involvement may be required if the daemon process needs to be restarted or if system-level issues are suspected.
  Always ensure that terminating or restarting jobs/processes does not affect business-critical operations.
  
  
  If the problem persists after these steps, consider checking SAP Notes or contacting SAP Support with details of the report, system logs, and job information.