How To Fix CNVMBT305 - Select an existing activity group

CNVMBT305 - Overview

• 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.

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

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CNVMBT305 - Details

• 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