How To Fix CNV483 - Successor activity "&1" is currently running

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 483

• Message text: Successor activity "&1" is currently running

What causes this issue?

The successor activity "&V1&" (pogram &V2&) is active and its status
should be reseted after the execution of the current activity. For this
reason both activities can not be executed simultaneously.

System Response

The activity "&V3&" can not be started.

How to fix this error?

Wait until the successor activity "&V1&" is finished and start the
activity again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV483 - Successor activity "&1" is currently running ?

  The SAP error message "CNV483 Successor activity '&1' is currently running" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a successor activity (a task that is supposed to run after a previous task) cannot start because the previous task is still in progress.
  Cause:
  
  Concurrent Execution: The predecessor activity has not yet completed, and the system is trying to start the successor activity.
  Long-Running Processes: The predecessor activity may take longer than expected due to data volume, system performance, or other issues.
  Locking Issues: There may be locks on certain resources that prevent the successor activity from starting.
  
  Solution:
  
  Wait for Completion: The simplest solution is to wait for the predecessor activity to complete. You can monitor the status of the running activity in the SAP system.
  Check Logs: Review the logs or the job overview to identify the status of the predecessor activity. This can provide insights into whether it is still running or if it has encountered an error.
  Cancel and Restart: If the predecessor activity seems to be stuck or has failed, you may need to cancel it and restart the entire process. Ensure that you have the necessary authorizations to do this.
  System Performance: If the predecessor activity is taking too long, consider checking system performance metrics. You may need to optimize the system or schedule the migration during off-peak hours.
  Review Configuration: Ensure that the configuration for the migration or conversion process is correct and that there are no issues with the data being processed.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SM37 to monitor job statuses and SLG1 to check application logs for more detailed error messages.
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to the CNV483 error or provide patches and updates.
  Documentation: Refer to the official SAP documentation for the migration tool you are using, as it may provide additional troubleshooting steps or best practices.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.