Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 320
Message text: For table &1, check routine &2, parameter &3 has a different domain
Parameter - domain conflict regarding the pre-defined check routine &V2&
and the pre-defined parameter field.
Warning.
Check if the parameter in control table CNV_20551_DERIV2 is correct.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV20551320 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 a mismatch in the domain of a parameter in a check routine for a specific table. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Domain Mismatch: The error arises when the data type or domain of a parameter in the check routine does not match the expected domain for the corresponding field in the target table. This can happen if the source data has a different format or type than what the target system expects. Data Type Incompatibility: The data being migrated may not conform to the expected data types defined in the target system, leading to validation failures. Custom Check Routines: If there are custom check routines implemented, they may not be aligned with the current data model or
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