How To Fix FKJO312 - Job start module reported a foreign lock

SAP Error Message - Details

• Message type: E = Error

• Message class: FKJO - Job Commander Messages

• Message number: 312

• Message text: Job start module reported a foreign lock

INCLUDE FICA_FKJO_JOB OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message FKJO312 - Job start module reported a foreign lock ?

  The SAP error message FKJO312 indicates that a job cannot start because it is blocked by a foreign lock. This typically occurs when a job is trying to access a resource that is currently locked by another process or job. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Foreign Lock: This means that another job or process is currently holding a lock on the resource that your job is trying to access. This could be due to:
  
  A long-running job that has not yet completed.
  A job that is waiting for a resource that is currently in use.
  A deadlock situation where two or more jobs are waiting for each other to release locks.
  
  
  
  Database Locks: The underlying database may have locks that prevent your job from accessing the necessary data.
  
  
  Job Scheduling Conflicts: If multiple jobs are scheduled to run at the same time and they require the same resources, this can lead to locking issues.
  
  
  Solutions:
  
  
  Check Job Status: Use transaction codes like SM37 to check the status of the jobs. Look for any jobs that are currently running or have failed. If you find a job that is blocking your job, you may need to wait for it to complete or terminate it if it is stuck.
  
  
  Analyze Locks: Use transaction code SM12 to view and analyze the locks in the system. This will help you identify which user or job is holding the lock that is causing the issue.
  
  
  Adjust Job Scheduling: If you frequently encounter this issue, consider adjusting the scheduling of jobs to avoid conflicts. Stagger the execution times of jobs that access the same resources.
  
  
  Increase Resources: If the issue is due to resource contention, consider increasing the resources available to the jobs or optimizing the jobs to reduce their resource usage.
  
  
  Consult Basis Team: If you are unable to resolve the issue, it may be necessary to consult your SAP Basis team for further analysis and assistance.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM37: Job Monitoring
  SM12: Lock Entries
  SM21: System Log
  ST22: Dump Analysis
  
  
  
  Documentation: Refer to SAP Notes and documentation related to job scheduling and locking mechanisms for more detailed guidance.
  
  
  Performance Tuning: Regularly monitor and tune the performance of your SAP system to minimize locking issues.
  
  
  By following these steps, you should be able to identify the cause of the FKJO312 error and take appropriate action to resolve it.