Message type: E = Error
Message class:  CNV_MBT - PCL message class 
Message number: 348
Message text: Activity Status entries not properly maintained for package &1.
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The SAP error message CNV_MBT348 indicates that there is an issue with the activity status entries for a specific package in the context of a data migration or conversion process. This error typically arises during the execution of a migration project, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
Cause: The error message CNV_MBT348 is triggered when the system detects that the activity status entries for the specified package (denoted by &1) are not properly maintained. This can occur due to several reasons, including: Incomplete Configuration: The migration package may not have been fully configured, leading to missing or incorrect status entries. Data Integrity Issues: There may be inconsistencies in the data that are being migrated, which can affect the status entries. Authorization Issues: The user executing the migration may not have the necessary authorizations to access or modify the activity status entries. Technical Errors: There could be underlying technical issues or bugs
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