How To Fix CNV_DMC_UI_FW_EXCEPT013 - Cannot load application log; application log already loaded

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_UI_FW_EXCEPT - Messages for exception classes

• Message number: 013

• Message text: Cannot load application log; application log already loaded

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_UI_FW_EXCEPT013 - Cannot load application log; application log already loaded ?

  The SAP error message CNV_DMC_UI_FW_EXCEPT013 indicates that there is an issue with loading the application log in the Data Migration Cockpit (DMC) or a related tool. The specific message "Cannot load application log; application log already loaded" suggests that the application log you are trying to access has already been loaded into the system, and therefore, the system cannot load it again.
  Causes:
  
  Duplicate Log Loading: The application log may have already been loaded in the current session or context, leading to this error.
  Session Management: If multiple sessions or instances of the application are open, one session may have already loaded the log, preventing another from doing so.
  Technical Issues: There could be underlying technical issues or bugs in the DMC or the related components that are causing this error.
  
  Solutions:
  
  Check Existing Logs: Verify if the application log is already loaded by checking the logs in the DMC or the relevant transaction codes (like SLG1 for application logs).
  Refresh the Session: Try refreshing the session or logging out and back into the DMC to clear any session-related issues.
  Close Other Sessions: If you have multiple sessions open, close the other sessions to ensure that only one instance is trying to load the log.
  Clear Cache: Sometimes, clearing the cache of the application or the browser (if using a web-based interface) can resolve loading issues.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve known bugs related to log loading.
  Consult Documentation: Review the SAP documentation or notes related to the Data Migration Cockpit for any specific instructions or known issues regarding application logs.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if this is a recurring problem.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SLG1 (Display Application Log) to view existing logs.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  DMC Documentation: Review the official SAP documentation for the Data Migration Cockpit for best practices and troubleshooting tips.
  
  By following these steps, you should be able to resolve the error or at least identify the underlying cause.