How To Fix CNV_DMC_WDA138 - The visibility of one or more fields in the view has changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 138

• Message text: The visibility of one or more fields in the view has changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_WDA138 - The visibility of one or more fields in the view has changed ?

  The SAP error message CNV_DMC_WDA138 indicates that there has been a change in the visibility of one or more fields in a view, which is typically encountered during data migration or conversion processes using the SAP Data Migration Cockpit (DMC) or similar tools. This error can arise due to various reasons, such as changes in the underlying data model, updates to the SAP system, or modifications in the configuration of the data migration project.
  Cause:
  
  Field Visibility Changes: The fields that were previously visible in the view are now either hidden or have been removed from the data model.
  Data Model Changes: Changes in the underlying database schema or data model that affect the fields being accessed.
  Configuration Changes: Changes in the configuration of the migration project or the data mapping that affect field visibility.
  Version Upgrades: Upgrading to a new version of SAP can sometimes lead to changes in the data model or views.
  
  Solution:
  
  Check Field Visibility: Review the data model and the specific view to determine which fields have changed in visibility. This can often be done through the SAP GUI or the relevant transaction codes.
  Update Data Mapping: If the fields are no longer available, you may need to update your data mapping to reflect the current state of the data model.
  Adjust Configuration: If the visibility change is due to configuration settings, ensure that the settings are correctly configured to include the necessary fields.
  Consult Documentation: Review the release notes or documentation for the version of SAP you are using to identify any changes that may have affected field visibility.
  Testing: After making the necessary adjustments, perform testing to ensure that the migration process works as expected without further errors.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on changes in field visibility.
  Data Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit for best practices and troubleshooting tips.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.