How To Fix CNV20551711 - Program start not possible. Activity &1 still running

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 711

• Message text: Program start not possible. Activity &1 still running

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551711 - Program start not possible. Activity &1 still running ?

  The SAP error message CNV20551711 indicates that a program cannot be started because another activity (or program) is still running. This is a common issue in SAP systems, especially during data migration or conversion processes, where multiple activities may be scheduled or executed concurrently.
  Cause:
  
  Concurrent Execution: The most common cause is that the program you are trying to start is already running in the background or foreground. This can happen if a previous instance of the program has not completed yet.
  Locking Mechanism: SAP uses a locking mechanism to prevent multiple instances of the same program from running simultaneously, which can lead to data inconsistencies.
  Long-Running Processes: If the previous activity is taking longer than expected, it may block the initiation of new processes.
  
  Solution:
  
  Check Running Jobs: Use transaction codes like SM37 (Job Monitoring) to check if the program is currently running. Look for jobs with the same name or related to the activity you are trying to start.
  Wait for Completion: If you find that the program is still running, you may need to wait for it to complete. Monitor the job status to see when it finishes.
  Terminate the Job: If the job is stuck or taking too long, you can terminate it using transaction SM37. Select the job and choose the option to cancel or delete it. Be cautious with this step, as terminating a job can lead to data inconsistencies if it was performing critical operations.
  Check for Locks: Use transaction SM12 to check for any locks that might be preventing the program from starting. If you find locks that are no longer needed, you can delete them.
  Review Logs: Check the logs for the running job to understand why it is taking longer than expected. This can provide insights into any issues that need to be addressed.
  
  Related Information:
  
  Transaction Codes:
  
  SM37: Job Monitoring
  SM12: Display and Delete Locks
  SM21: System Log
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error message.
  Performance Tuning: If this issue occurs frequently, consider reviewing the performance of the program or the system to identify potential bottlenecks.
  
  By following these steps, you should be able to resolve the CNV20551711 error and successfully start the desired program.