How To Fix /PRA/PN136 - No DN Launcher Queue Manager job found; yet is locked, preventing restart

SAP Error Message - Details

• Message type: E = Error

• Message class: /PRA/PN -

• Message number: 136

• Message text: No DN Launcher Queue Manager job found; yet is locked, preventing restart

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PRA/PN136 - No DN Launcher Queue Manager job found; yet is locked, preventing restart ?

  The SAP error message /PRA/PN136 No DN Launcher Queue Manager job found; yet is locked, preventing restart typically indicates an issue with the DN (Delivery Note) Launcher Queue Manager job in the SAP system. This error suggests that the system is trying to restart a job that is currently locked, but it cannot find the job to restart it.
  Causes:
  
  Job Locking: The job may be locked due to a previous execution that did not complete successfully or was terminated unexpectedly.
  Job Deletion: The job might have been deleted or not created properly, leading to the system being unable to find it.
  Configuration Issues: There may be configuration issues in the DN Launcher settings that prevent the job from being created or recognized.
  System Errors: There could be underlying system errors or inconsistencies in the job scheduling framework.
  
  Solutions:
  
  Check Job Status: Use transaction code SM37 to check the status of the DN Launcher Queue Manager job. Look for any jobs that are currently running or have failed.
  Release Locks: If the job is locked, you may need to release the lock. This can often be done by using transaction SM12 to find and delete the lock entries related to the job.
  Recreate the Job: If the job is missing, you may need to recreate it. This can typically be done through the relevant configuration settings in the SAP system.
  Check Configuration: Review the configuration settings for the DN Launcher to ensure everything is set up correctly. This may involve checking the relevant customizing settings in the SAP system.
  System Restart: In some cases, a system restart may help clear any temporary issues that are causing the job to be locked.
  Consult Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the DN Launcher and related components to ensure that all configurations are correct.
  Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if this is impacting business operations.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the /PRA/PN136 error message in your SAP system.