How To Fix CNVMBT169 - Activity start not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 169

• Message text: Activity start not possible

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 CNVMBT169 - Activity start not possible ?

  The SAP error message CNVMBT169 "Activity start not possible" typically occurs in the context of data migration or conversion processes, particularly when using the SAP Migration Cockpit or similar tools. This error indicates that the system is unable to start a specific activity due to various potential reasons.
  Causes:
  
  
  Missing Prerequisites: The activity you are trying to start may have prerequisites that have not been met. This could include missing configuration settings or incomplete data preparation.
  
  
  Locking Issues: The system might be locked for certain activities, preventing the start of the new activity. This can happen if another process is currently running or if there are locks on the relevant tables.
  
  
  Authorization Issues: The user attempting to start the activity may not have the necessary authorizations to perform the action.
  
  
  Technical Errors: There could be underlying technical issues, such as problems with the database, system configuration, or inconsistencies in the migration objects.
  
  
  Incorrect Activity Sequence: The activities may need to be executed in a specific order, and attempting to start an activity out of sequence can lead to this error.
  
  
  Solutions:
  
  
  Check Prerequisites: Review the documentation for the specific migration activity to ensure that all prerequisites are met. This may include configuration settings or data preparation steps.
  
  
  Release Locks: If the error is due to locking issues, check for any active processes that may be holding locks on the relevant tables. You can use transaction codes like SM12 to view and release locks.
  
  
  Verify Authorizations: Ensure that the user has the necessary authorizations to perform the activity. You may need to consult with your SAP security team to verify and adjust user roles.
  
  
  Review Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide insights into what went wrong.
  
  
  Follow Activity Sequence: Ensure that you are following the correct sequence of activities as outlined in the migration guide. If necessary, consult the migration documentation for the correct order.
  
  
  Technical Support: If the issue persists, consider reaching out to SAP support or your internal IT team for further assistance. They may need to investigate the system logs or perform additional troubleshooting.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific migration tool you are using for detailed guidance on activities and prerequisites.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the CNVMBT169 error and take appropriate action to resolve it.