How To Fix MM_PUR_PO_EXT_MSG051 - Job is already running for connected system &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: MM_PUR_PO_EXT_MSG - Message class for Backend PO Extraction

• Message number: 051

• Message text: Job is already running for connected system &1.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MM_PUR_PO_EXT_MSG051 - Job is already running for connected system &1. ?

  The SAP error message MM_PUR_PO_EXT_MSG051 indicates that a job is already running for the connected system, which prevents the execution of a new job or process that is trying to access the same resources or perform the same actions. This is a common issue in environments where multiple processes or jobs are scheduled to run concurrently.
  Cause:
  
  Concurrent Job Execution: The most common cause is that a job or process is already executing in the background, and the system does not allow another instance of the same job to run simultaneously.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a job is already processing data, another job trying to access the same data will be blocked.
  System Configuration: There may be configuration settings that limit the number of concurrent jobs that can run for a specific task or transaction.
  
  Solution:
  
  Check Running Jobs: Use transaction code SM37 to check the status of background jobs. Look for jobs that are currently running and see if they are related to the task you are trying to execute.
  Wait for Completion: If you find that a job is running, you may need to wait for it to complete before attempting to run your job again.
  Terminate Job: If the job is stuck or taking too long, you may consider terminating it. Be cautious with this approach, as it may lead to data inconsistencies. You can terminate a job in SM37 by selecting the job and choosing the "Cancel" option.
  Review Job Scheduling: If this is a recurring issue, review the scheduling of jobs to ensure that they do not overlap or conflict with each other.
  Increase Concurrent Job Limit: If your business process requires multiple jobs to run simultaneously, consider adjusting the system settings to allow for more concurrent jobs, if feasible.
  Consult Basis Team: If you are unsure about terminating jobs or changing configurations, consult your SAP Basis team for assistance.
  
  Related Information:
  
  Transaction Codes: 
  
  SM37: Monitor background jobs.
  SM12: Check for locks on objects.
  SM21: View system logs for additional error messages.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation for best practices on job scheduling and management.
  
  By following these steps, you should be able to resolve the MM_PUR_PO_EXT_MSG051 error and ensure smoother job execution in your SAP environment.