How To Fix WL648 - Background job & for automatic restart cannot be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 648

• Message text: Background job & for automatic restart cannot be locked

What causes this issue?

The background job &V1& which is used to automatically restart work
items with temporary errors cannot be locked.

System Response

The action was terminated.

How to fix this error?

Evaluate the entries in SYSLOG. Search for entries for the function
module JOB_CLOSE.

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

INCLUDE WF_HINTERGRUNDVERWALTUNG OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WL648 - Background job & for automatic restart cannot be locked ?

  The SAP error message WL648 indicates that a background job cannot be restarted automatically because it is locked. This typically occurs when there is a conflict with job scheduling or when the job is already running or in a locked state.
  Cause:
  
  Job Already Running: The background job you are trying to restart is already running or has not completed its previous execution.
  Locking Mechanism: SAP uses a locking mechanism to prevent multiple instances of the same job from running simultaneously. If a job is in a locked state, it cannot be restarted until the lock is released.
  Job Scheduling Conflicts: There may be conflicts in job scheduling, such as overlapping jobs or dependencies that have not been resolved.
  System Issues: There could be underlying system issues, such as database locks or resource constraints, that are preventing the job from being restarted.
  
  Solution:
  
  Check Job Status: Use transaction code SM37 to check the status of the background job. Look for any jobs with the same name and see if they are currently running or have failed.
  Release Locks: If the job is locked, you may need to release the lock. This can be done by:
  
  Terminating the job if it is stuck (ensure that it is safe to do so).
  Waiting for the job to complete if it is still running.
  
  
  Review Job Scheduling: Check the job scheduling settings to ensure there are no conflicts. Adjust the scheduling if necessary to avoid overlapping jobs.
  Check for Dependencies: Ensure that any dependent jobs have completed successfully before attempting to restart the job.
  System Health Check: Perform a system health check to identify any underlying issues that may be causing the job to be locked. This may involve checking database locks, system resources, and job logs.
  Consult Logs: Review the job logs for any error messages or warnings that may provide additional context on why the job cannot be restarted.
  
  Related Information:
  
  Transaction Codes:
  
  SM37: Monitor background jobs.
  SM12: Check and manage locks.
  SM21: View system logs for errors.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to background job management.
  Documentation: Refer to SAP documentation for best practices on managing background jobs and troubleshooting job-related issues.
  
  If the problem persists after following these steps, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.