Message type: E = Error
Message class:  CNV20345 - Message class 20345 
Message number: 005
Message text: &1 records for J_OBJNR entered in mapping table CNVRENAME due to ONRAO
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The SAP error message CNV20345005 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. The error indicates that there are records in the mapping table CNVRENAME that are not being processed correctly due to an issue with the object number (J_OBJNR).
Cause: The error message suggests that there are records in the mapping table CNVRENAME that are not being handled properly. This can occur due to several reasons: Data Inconsistency: There may be inconsistencies in the data being migrated, such as missing or incorrect object numbers. Mapping Issues: The mapping table may not be correctly configured, leading to issues in how the data is being transformed or migrated. Technical Errors: There could be technical issues in the migration process, such as problems with the underlying database or the migration tool itself. ONRAO (Object Not Recognized After Object): This part of the error message
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