Message type: E = Error
Message class:  CNV_10940_MSG - Message Class for Report Variant Scan 
Message number: 311
Message text: No old values in CNVRENAME
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The SAP error message CNV_10940_MSG311 with the description "No old values in CNVRENAME" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system is unable to find the old values that are supposed to be mapped or transformed during the migration process.
Cause: Missing Mapping Entries: The error often arises when there are no corresponding old values defined in the mapping table (CNVRENAME) for the new values being processed. This can happen if the mapping was not set up correctly or if the data being migrated does not have a corresponding entry in the mapping table. Data Inconsistency: If the source data does not match the expected format or values that are defined in the mapping, the system will not be able to find the old values.
Configuration Issues: There may be issues with the configuration of
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