Message type: E = Error
Message class:  VKKCPH - Policyholder Change 
Message number: 018
Message text: Policyholder change &1 to &2 already exists
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The SAP error message VKKCPH018, which states "Policyholder change &1 to &2 already exists," typically occurs in the context of managing policyholder data in the SAP system, particularly within the SAP Insurance module (SAP FS-PM or FS-CD). This error indicates that there is an attempt to create or modify a policyholder change that already exists in the system.
Cause: Duplicate Entry: The primary cause of this error is that there is already an existing record in the system for the policyholder change from &1 (the original policyholder) to &2 (the new policyholder). The system prevents the creation of duplicate entries to maintain data integrity. Data Consistency: The system checks for consistency and uniqueness of policyholder changes, and if it finds a match, it raises this error.
Solution: Check Existing Records: Review the existing policyholder changes in the system to confirm if the change from &1 to &2 has already been recorded. You can do this
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