How To Fix MDG_MDF101 - Field name &1 is already reserved for role &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 101

• Message text: Field name &1 is already reserved for role &2

What causes this issue?

You created field &v1&. However, this field name is already reserved
for fields with the role &v2&. The field you created does not have this
role.

System Response

The system will not create this field.

How to fix this error?

Change the definition in your field catalog.

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_MDF101 - Field name &1 is already reserved for role &2 ?

  The SAP error message MDG_MDF101 indicates that a field name is already reserved for a specific role in the Master Data Governance (MDG) system. This typically occurs when there is an attempt to create or modify a field that conflicts with an existing field that has already been assigned to a particular role.
  Cause:
  
  Field Name Conflict: The field name you are trying to use is already associated with another role in the MDG configuration.
  Role Assignment: The role you are trying to assign the field to may already have a reserved field name that is not compatible with the new field you are trying to create or modify.
  Configuration Issues: There may be issues in the configuration settings where the field names are not properly managed or documented.
  
  Solution:
  
  Check Existing Fields: Review the existing fields in the MDG configuration to see if the field name you are trying to use is already in use. You can do this by navigating to the relevant MDG configuration area.
  Rename the Field: If the field name is already reserved, consider renaming the field you are trying to create or modify to avoid the conflict.
  Role Review: Check the roles assigned to the field and ensure that the field you are trying to create is not conflicting with the existing role assignments.
  Consult Documentation: Refer to the SAP MDG documentation for guidelines on naming conventions and field assignments to ensure compliance with best practices.
  Transport Requests: If changes are being made in a development environment, ensure that the transport requests are correctly managed and that there are no pending changes that could affect the field assignments.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on field management in MDG.
  MDG Configuration Guide: Review the MDG configuration guide for best practices on managing fields and roles.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.