How To Fix MDG_MDF126 - The area uses an unknown characteristic &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 126

• Message text: The area uses an unknown characteristic &1

What causes this issue?

The application area uses the unknown characteristic &v1&.
This can occur, for example, if the application area was imported by a
transport from another system, but the characteristics that were used
were not yet (completely) imported.

System Response

The characteristic was created automatically.

How to fix this error?

Run another generation of the data structures.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_MDF126 - The area uses an unknown characteristic &1 ?

  The SAP error message MDG_MDF126, which states "The area uses an unknown characteristic &1," typically occurs in the context of Master Data Governance (MDG) when there is an issue with the configuration of characteristics in the data model. This error indicates that the system is trying to reference a characteristic that has not been defined or is not recognized in the current context.
  Cause:
  
  Missing Characteristic Definition: The characteristic referenced in the error message (&1) has not been defined in the system.
  Incorrect Configuration: The characteristic may have been deleted or not properly configured in the data model.
  Transport Issues: If the characteristic was recently transported from another system, it may not have been included in the transport request or may not have been activated properly.
  Version Mismatch: There may be a version mismatch between the data model and the characteristics defined in the system.
  
  Solution:
  
  
  Check Characteristic Definition:
  
  Go to the relevant configuration area in SAP and verify if the characteristic mentioned in the error message exists.
  If it does not exist, you will need to create it or correct the reference in the data model.
  
  
  
  Review Data Model Configuration:
  
  Navigate to the MDG data model configuration and ensure that all characteristics used in the model are correctly defined and active.
  If you find any discrepancies, correct them accordingly.
  
  
  
  Transport Management:
  
  If the characteristic was supposed to be transported from another system, check the transport logs to ensure that it was included and activated in the target system.
  If necessary, re-transport the characteristic or manually create it in the target system.
  
  
  
  Check for Version Issues:
  
  Ensure that you are working with the correct version of the data model and that all changes have been properly activated.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to MDG and the specific characteristics you are working with for any additional guidance.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the process to identify where the reference to the unknown characteristic is being made.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  MDG Configuration Guides: Refer to the official SAP MDG configuration guides for detailed instructions on setting up characteristics and data models.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the MDG_MDF126 error and implement a solution to resolve it.