Message type: E = Error
Message class:  CNV_OM_PRESEL - Messages for LT Object Based Preselection 
Message number: 051
Message text: No records found
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The SAP error message CNV_OM_PRESEL051: No records found typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system was unable to find any records that match the selection criteria specified in the migration process. Causes: Incorrect Selection Criteria: The filters or selection criteria set in the migration cockpit may not match any existing records in the source system. Data Not Available: The data that you are trying to migrate may not exist in the source system or may have been deleted or archived.
Configuration Issues: There may be issues with the configuration of the migration objects or the mapping of fields. Authorization Issues: The user executing the migration may not have the necessary authorizations to access the data. Technical Issues: There could be underlying technical issues, such as database connectivity problems or issues with the migration tool itself. Solutions: Check Selection Criteria:
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