Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 251
Message text: Elementary relationship &1 for object type &2 is not used
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The SAP error message CNV_10020251 indicates that there is an elementary relationship defined for a specific object type that is not being utilized in the context of a data migration or conversion process. This message is part of the SAP Conversion Tools, often encountered during data migration projects, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
Cause: The error typically arises due to one of the following reasons: Unused Relationships: The elementary relationship defined in the migration project is not being referenced or used in the current data migration scenario.
Configuration Issues: There may be a misconfiguration in the mapping or transformation rules that leads to the relationship not being applied. Data Model Changes: Changes in the data model or object types may have rendered certain relationships obsolete or unnecessary.
Solution: To resolve this error, you can take the following steps: Review the Mapping: Check the mapping configuration for the object type mentioned in the
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