Message type: E = Error
Message class:  CNV_LTHCM_S_10 - LT HCM: Message Class for Data Selection 
Message number: 165
Message text: Table &1 must be included according to table group &2
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The SAP error message CNV_LTHCM_S_10165 typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This error indicates that a specific table (denoted as &1) must be included in the migration process according to the specified table group (denoted as &2).
Cause: Missing Table in Migration: The error suggests that the specified table is not included in the migration process, but it is required based on the configuration of the table group.
Configuration Issues: There may be a misconfiguration in the migration settings or the mapping of tables to their respective groups. Dependency on Other Tables: The table in question may have dependencies on other tables that are part of the migration, and thus it must be included to maintain data integrity.
Solution: Check Migration Settings: Review the migration settings to ensure that the table in question is included in the migration process. You may
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