How To Fix CNV_DMC_VM020 - The visibility of the header structure cannot be changed to '&1'

CNV_DMC_VM020 - Overview

• Message type: E = Error

• Message class: CNV_DMC_VM - S/4 Migration: Texts for View Management

• Message number: 020

• Message text: The visibility of the header structure cannot be changed to '&1'

Self-Explanatory Message

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CNV_DMC_VM020 - Details

• The SAP error message CNV_DMC_VM020 typically occurs in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is an issue with the visibility of a header structure in the data migration process.
  
  Cause:
  The error message "The visibility of the header structure cannot be changed to '&1'" suggests that there is an attempt to modify the visibility of a header structure in a way that is not allowed. This could be due to:
  
  Incorrect Configuration: The header structure might be incorrectly configured in the migration project.
  Data Model Constraints: The data model may have constraints that prevent changing the visibility of certain fields or structures.
  Incompatibility: There may be an incompatibility between the source and target systems or data structures.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to make changes to the header structure.
  
  
  Solution:
  To