Message type: E = Error
Message class:  CNV_MBT - PCL message class 
Message number: 345
Message text: Successor &1 of activity &2 not completed in package &3 , phase &4
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The SAP error message CNV_MBT345 indicates that a successor activity in a specific package and phase has not been completed. This error typically arises during the execution of a migration or conversion project, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
Cause: Incomplete Activity: The error suggests that a prerequisite or predecessor activity must be completed before the current activity can proceed. This could be due to: A missing or failed step in the migration process. Dependencies between activities that have not been satisfied.
Configuration Issues: There may be configuration settings that are not properly set, leading to the inability to complete the required activities. Data Issues: There could be issues with the data being migrated, such as inconsistencies or errors that prevent the successful completion of the activity.
Solution: Check Dependencies: Review the migration or conversion project to identify the predecessor activities that need to be completed. Ensure that all required steps are finished
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