Message type: E = Error
Message class:  CNV10400 - Messages for package 10400 (characteristics) 
Message number: 667
Message text: Conversion of characteristic attributes is inactive.
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The SAP error message CNV10400667, which states "Conversion of characteristic attributes is inactive," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the use of the SAP S/4HANA Migration Cockpit. This error indicates that the system is unable to convert certain characteristic attributes because the conversion process is not active or has not been properly configured.
Cause: Inactive Conversion Settings: The conversion settings for the characteristic attributes may not be activated in the system. Missing Configuration: The necessary configuration for the conversion of the specific characteristic attributes may be missing or incomplete. Data Model Issues: There may be issues with the data model or the mapping of the characteristic attributes that prevent the conversion from being executed. Version Compatibility: The version of the migration tool or the source system may not be compatible with the target system.
Solution: Activate Conversion Settings: Check the configuration settings in the migration tool or
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