How To Fix CNVMBT305 - Select an existing activity group

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 305

• Message text: Select an existing activity group

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 CNVMBT305 - Select an existing activity group ?

  The SAP error message CNVMBT305 ("Select an existing activity group") typically occurs in the context of the SAP Migration Cockpit or during data migration activities. This error indicates that the system expects you to select an existing activity group, but none is available or the selection is not valid.
  Cause:
  
  No Activity Groups Available: There may not be any activity groups created or available for selection in the current context.
  Authorization Issues: The user may not have the necessary authorizations to view or select the activity groups.
  Configuration Issues: The system may not be properly configured to display the activity groups, or there may be a missing configuration step.
  Incorrect Transaction: The user might be in the wrong transaction or screen where activity groups are not applicable.
  
  Solution:
  
  
  Check for Existing Activity Groups:
  
  Navigate to the relevant transaction or screen where activity groups are managed (e.g., transaction code LTMC for Migration Cockpit).
  Ensure that there are existing activity groups created. If not, you may need to create one.
  
  
  
  Create an Activity Group:
  
  If no activity groups exist, you can create a new one. Follow the appropriate steps in the Migration Cockpit to define and save a new activity group.
  
  
  
  Verify User Authorizations:
  
  Check if the user has the necessary authorizations to access and select activity groups. This may involve consulting with your SAP security team to ensure the user role includes the required permissions.
  
  
  
  Check Configuration:
  
  Ensure that the system is properly configured for the migration process. This may involve checking settings in the SAP system or consulting with your SAP Basis team.
  
  
  
  Use the Correct Transaction:
  
  Make sure you are using the correct transaction or application for the task you are trying to perform. If you are unsure, refer to the documentation or consult with a colleague.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error code in the SAP Support Portal.
  Documentation: Review the official SAP documentation for the Migration Cockpit or the specific migration tool you are using to ensure you are following the correct procedures.
  Community Forums: Consider visiting SAP Community forums or other user groups where similar issues may have been discussed.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.