Message type: E = Error
Message class:  CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO) 
Message number: 225
Message text: Check content: Additional key field found in table &: not relevant
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The SAP error message CNV_CMIS_A_20225 typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or SAP S/4HANA Migration Cockpit. This error indicates that there is an additional key field found in a specific table that is not relevant for the migration or conversion process.
Cause: The error is caused by the presence of an additional key field in the specified table that is not recognized or required by the migration program. This can happen due to: Data Model Changes: The data model in the target system may have changed, and the additional key field is not part of the expected structure.
Configuration Issues: The migration configuration may not be set up correctly to handle the additional key field. Inconsistent Data: The source data may contain fields that are not mapped correctly to the target structure.
Solution: To resolve this error, you can take the following steps: Review the Mapping: Check the mapping
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