Message type: E = Error
Message class:  CNV_20212_CHECK - Messages for check functions (credit control area conv.) 
Message number: 287
Message text: Rename mapping with priority flag (Credit Control Area: &1 -> &2)
Credit control area mapping with priority flag.
Value old = &V1&
Value new = &V2&
Error
Clear the priority flag for the rename mapping.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_20212_CHECK287 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with the mapping of credit control areas in the data being processed.
Cause: The error message suggests that there is a conflict or inconsistency in the mapping of credit control areas. Specifically, it indicates that there is a rename mapping with a priority flag that is not being handled correctly. This can happen due to: Duplicate Entries: There may be multiple entries for the same credit control area in the mapping table. Incorrect Mapping: The mapping from one credit control area to another may not be set up correctly, leading to conflicts. Priority Issues: The priority flag for the mapping may not be correctly assigned, causing the system to be unable to determine which mapping to use.
Solution: To resolve this error, you can take
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