How To Fix CNV_DMC_MC_EXCEPTION191 - Structure &1 of view &2 cannot be ôVisibleö or ôRequiredö; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 191

• Message text: Structure &1 of view &2 cannot be ôVisibleö or ôRequiredö; see long text

What causes this issue?

For source structure &V1&, the view ?&V2&? is set to ?Visible? or
?Required?. This is not possible as source structure &V1& has no field
that is set to "Visible" or ?Required? for this view. You need to ensure
that the view ?&V2&? is set to ?Visible? or ?Required? for at least one
field.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION191 - Structure &1 of view &2 cannot be ôVisibleö or ôRequiredö; see long text ?

  The SAP error message CNV_DMC_MC_EXCEPTION191 typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC). This error indicates that there is an issue with the configuration of a specific structure in a view, which is not set to be "Visible" or "Required" as expected.
  Cause:
  
  Configuration Issue: The structure defined in the view is not properly configured to be visible or required. This can happen if the settings in the data migration template or the underlying data model are incorrect.
  Data Model Mismatch: There may be a mismatch between the data model expected by the migration tool and the actual data structure in the source or target system.
  Field Settings: Certain fields in the structure may not be marked correctly in the data migration template, leading to this error.
  
  Solution:
  
  Check Configuration: Review the configuration of the data migration template and ensure that the structure in question is set to be "Visible" and/or "Required" as needed. This can usually be done in the DMC or the relevant configuration settings.
  Adjust Field Properties: If you have access to the data model, check the properties of the fields in the structure. Ensure that they are correctly defined to meet the requirements of the migration process.
  Consult Long Text: The error message suggests checking the long text for more details. This long text may provide specific guidance on what needs to be corrected.
  Review Migration Settings: Ensure that the migration settings align with the source and target systems. This includes checking for any discrepancies in field mappings or data types.
  Testing: After making adjustments, perform a test migration to verify that the issue has been resolved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the Data Migration Cockpit, which may provide insights into common issues and their resolutions.
  Community Forums: Consider searching or posting in SAP community forums or support channels, as other users may have encountered and resolved similar issues.
  
  If the problem persists after following these steps, it may be beneficial to engage with SAP support for further assistance.