Message type: E = Error
Message class:  CNV_DMC_SIN - Messages for s-innovations migration 
Message number: 397
Message text: Business partner role: &1 already exists
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
With this object you can only add new business partner roles. You can't
change already existing entries.
Delete these records from the template or change your mapping.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_DMC_SIN397 indicates that there is an attempt to create a business partner role that already exists in the system. This error typically arises during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
Cause: The error occurs because: Duplicate Business Partner Role: The business partner role you are trying to assign already exists for the specified business partner. Data Migration Issues: During data migration, the source data may contain duplicates or the migration logic may not handle existing records properly.
Configuration Issues: There may be issues with the configuration of business partner roles in the system.
Solution: To resolve this error, you can take the following steps: Check Existing Roles: Use transaction code BP to check the existing business partner and its assigned roles. Verify if the role you are trying to assign is already present. Modify Data Migration Logic: If you are using a migration tool, review the mapping
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