How To Fix MDG_MDF120 - Field &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 120

• Message text: Field &1 does not exist

What causes this issue?

The definition of field &V2& includes a reference to field &V1&. However
, field &V1& is not registered.
This is most likely a program error.

System Response

When saving, the settings will not be saved.
In other cases, processing is continued.

How to fix this error?

Check your settings, and contact SAP if required.

Procedure for System Administrators

Check whether you can temporarily deregister field &V2& in the data
basis definition.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_MDF120 - Field &1 does not exist ?

  The SAP error message MDG_MDF120, which states "Field &1 does not exist," typically occurs in the context of Master Data Governance (MDG) when there is an issue with the configuration or mapping of fields in the data model. This error indicates that the system is trying to access a field that is not defined or recognized in the context of the operation being performed.
  Causes:
  
  Field Not Defined: The field referenced in the error message may not be defined in the data model or the relevant entity.
  Incorrect Mapping: There may be an issue with the mapping of fields between the source and target systems or within the MDG configuration.
  Data Model Changes: If there have been recent changes to the data model (e.g., adding or removing fields), the system may still be referencing old configurations.
  Custom Fields: If you are using custom fields, they may not be properly configured or activated in the MDG system.
  Transport Issues: If the configuration was transported from a development environment to a production environment, there may have been issues during the transport process.
  
  Solutions:
  
  Check Field Definition: Verify that the field mentioned in the error message is defined in the relevant data model. You can do this by checking the data model configuration in the MDG application.
  Review Mapping: Ensure that the mapping of fields is correct. This includes checking any custom mappings that may have been set up.
  Update Data Model: If there have been changes to the data model, ensure that all relevant configurations are updated and activated.
  Custom Field Configuration: If the error involves a custom field, check that it is properly defined and activated in the MDG system.
  Transport Validation: If the issue arose after a transport, validate that all necessary objects were transported correctly and that there are no missing components.
  Debugging: If the issue persists, consider using debugging tools to trace the execution and identify where the error is occurring.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the MDG_MDF120 error. SAP frequently updates its knowledge base with solutions for common errors.
  MDG Documentation: Review the official SAP MDG documentation for guidance on configuring data models and fields.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem continues after trying the above solutions, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.