How To Fix CNV20400204 - Field &1-&2 was converted in split, but is set to NOTUSE='X' in merge

CNV20400204 - Overview

• Message type: E = Error

• Message class: CNV20400 - Message class CNV20400

• Message number: 204

• Message text: Field &1-&2 was converted in split, but is set to NOTUSE='X' in merge

Self-Explanatory Message

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CNV20400204 - Details

• The SAP error message CNV20400204 typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data conversion tools. This error indicates that a field was converted in a split operation but is marked as "not used" in the merge operation. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Data Migration Process: The error arises when there is a discrepancy between the data conversion steps. Specifically, it indicates that a field (denoted as &1-&2) was processed in a split operation but is not being utilized in the subsequent merge operation.
  
  Configuration Issues: The configuration settings for the data migration might not align correctly, leading to fields being marked as not used when they should be included.
  Mapping Errors: There may be issues in the mapping of fields between the source and target systems, causing certain fields to be excluded from the merge process.
  
  
  Solution:
  
  Review Mapping Configuration: