How To Fix MDG_MDF137 - Unable to assign data element &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 137

• Message text: Unable to assign data element &1

What causes this issue?

Data element &v1& should be assigned to field &v2& during a generation
or a transport. However, this assignment could not be saved. This can be
for one of the following reasons:
Data element &v1& does not actively exist in the ABAP Dictionary.
Another delivered data element is already assigned to the field. As a
subsequent change is normally an error, the system does not permit it.

System Response

The assignment was not executed.

How to fix this error?

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

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 MDG_MDF137 - Unable to assign data element &1 ?

  The SAP error message MDG_MDF137, which states "Unable to assign data element &1," typically occurs in the context of Master Data Governance (MDG) when there is an issue with the assignment of a data element to a specific field or structure in the MDG configuration.
  Cause:
  
  Data Element Not Found: The specified data element (&1) may not exist in the system or may have been deleted.
  Incorrect Configuration: There may be an issue in the configuration settings where the data element is not correctly assigned to the relevant field or structure.
  Authorization Issues: The user may not have the necessary authorizations to assign the data element.
  Technical Issues: There could be underlying technical issues, such as inconsistencies in the data dictionary or transport issues.
  
  Solution:
  
  Check Data Element: Verify that the data element specified in the error message exists in the system. You can do this by using transaction SE11 (Data Dictionary) to search for the data element.
  Review Configuration: Go through the MDG configuration settings to ensure that the data element is correctly assigned to the relevant field or structure. This can be done in the MDG customizing settings.
  Authorization Check: Ensure that the user has the necessary authorizations to perform the assignment. Check the user roles and authorizations in transaction PFCG.
  Transport Issues: If the issue arose after a transport, check if the transport was successful and if all necessary objects were included.
  Consult SAP Notes: Look for any relevant SAP Notes that might address this specific error. SAP Notes can provide patches or additional guidance on resolving the issue.
  Debugging: If the issue persists, consider debugging the process to identify where the assignment is failing.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), PFCG (Role Maintenance).
  SAP Notes: Search for specific SAP Notes related to MDG and the error message MDG_MDF137 in the SAP Support Portal.
  Documentation: Refer to the official SAP documentation for Master Data Governance for detailed configuration steps and best practices.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.