Message type: E = Error
Message class:  CNV_LTHCM_D_10 - LT HCM: Message Class for Data Deletion 
Message number: 023
Message text: Duplicate records for HCM table &1 to be deleted
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The SAP error message CNV_LTHCM_D_10023 indicates that there are duplicate records in a specific HCM (Human Capital Management) table that need to be addressed. This error typically arises during data migration or data conversion processes, particularly when using the SAP Landscape Transformation (SLT) tool or during the conversion to S/4HANA.
Cause: The error is caused by the presence of duplicate entries in the specified HCM table. This can happen due to various reasons, such as: Data Migration Issues: During data migration from legacy systems, duplicate records may be inadvertently created. Data Entry Errors: Manual data entry errors can lead to duplicate records being created in the HCM tables. Integration Issues: Problems during data integration from different sources can result in duplicate records.
Solution: To resolve the error, you can follow these steps: Identify Duplicate Records: Use SQL queries or SAP transaction codes (like SE16 or SE11) to identify the duplicate records in the specified HCM table. You can group
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