Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 038
Message text: Elementary relationship &1: Spec. subprog. was not maintained completely
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The SAP error message CNV_10020038 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an elementary relationship that has not been fully maintained in the specified subprogram.
Cause: Incomplete Configuration: The subprogram referenced in the error message may not have been fully configured or implemented. This could be due to missing data, incomplete mappings, or incorrect settings. Data Model Changes: If there have been changes in the data model or structure that are not reflected in the migration program, it can lead to this error. Custom Development: If there are custom developments or enhancements that are not aligned with the standard migration processes, it may cause this error. Version Compatibility: The error may also arise if there are compatibility issues between the version of the SAP system and the migration tools being used.
Solution: Check Configuration: Review the
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