Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 377
Message text: Offset=&1, data element =&2, domain=&3, length=&4 (structure suggestion)
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The SAP error message CNV20551377 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates a problem with the structure of the data being processed, specifically regarding the offset, data element, domain, and length of the fields involved.
Cause: Data Structure Mismatch: The error often arises when there is a mismatch between the expected data structure in the target system and the actual data being migrated. This can occur if the data types, lengths, or formats do not align with the definitions in the target SAP system. Invalid Data: The data being migrated may contain invalid or unexpected values that do not conform to the defined domains or data types in the target structure.
Configuration Issues: There may be configuration issues in the migration settings or mapping that lead to incorrect assumptions about the data structure.
Solution: Check Data Mapping: Review
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