How To Fix CNV_CMIS_A_20215 - Additional key field found in table &: relevant

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO)

• Message number: 215

• Message text: Additional key field found in table &: relevant

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_A_20215 - Additional key field found in table &: relevant ?

  The SAP error message CNV_CMIS_A_20215 indicates that an additional key field has been found in a table that is relevant for a conversion or migration process. This error typically arises during data migration activities, especially when using SAP's Conversion and Migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer tools.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Schema Changes: The target table structure has changed, and additional key fields have been introduced that were not present in the source system.
  Configuration Issues: The mapping or configuration settings in the migration tool may not align with the current structure of the target table.
  Data Model Changes: If the data model has been altered (for example, during an upgrade or a new implementation), it may lead to discrepancies in expected key fields.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Table Structure: Review the structure of the target table in the SAP system to identify the additional key fields. You can do this using transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser).
  
  
  Update Migration Mapping: If the additional key fields are required, ensure that your migration mapping includes these fields. Update the mapping configuration in the migration tool to accommodate the new key fields.
  
  
  Adjust Source Data: If the additional key fields are not needed, you may need to adjust your source data or the migration logic to exclude these fields from the migration process.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool you are using. There may be specific guidelines or notes regarding changes in table structures and how to handle them.
  
  
  Testing: After making the necessary adjustments, perform a test migration to ensure that the error is resolved and that the data is migrated correctly.
  
  
  Seek Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with an SAP expert who has experience with data migration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling key field changes during migration.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for detailed instructions and best practices.
  Community Forums: Engage with the SAP Community or other forums where SAP professionals discuss similar issues. You may find solutions or workarounds shared by others who have encountered the same error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to successfully complete your data migration.