Message type: E = Error
Message class:  CNV_MBT_DEX - DMIS Data Extract related messages 
Message number: 014
Message text: Data Extract & is already assigned to package & for export
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The SAP error message CNV_MBT_DEX014 typically indicates that there is an issue related to data extraction in the context of a data migration project, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services tools. The message suggests that the data extract is already assigned to a package and is not available for export.
Cause: Data Locking: The data extract might be locked because it is currently being processed or is already assigned to another package.
Configuration Issues: There may be configuration issues in the data migration setup that prevent the extract from being exported. Concurrency Issues: If multiple users or processes are trying to access or modify the same data extract simultaneously, it can lead to this error. Incomplete Process: The data extraction process may not have been completed successfully, leaving the extract in a state that cannot be exported.
Solution: Check for Locks: Verify if the data extract is currently being processed or
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