How To Fix USMD1501 - Mod./ent.&1, node ent.&2, hier.attr.fr.ref.&3: No data element allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 501

• Message text: Mod./ent.&1, node ent.&2, hier.attr.fr.ref.&3: No data element allowed

What causes this issue?

The hierarchy attribute from reference has the same name as the
referenced entity type. The data element specified is therefore not
allowed.

System Response

The data model will not be saved or generated.

How to fix this error?

Enter a different name for the hierarchy attribute from reference or do
not specify a data element.

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 USMD1501 - Mod./ent.&1, node ent.&2, hier.attr.fr.ref.&3: No data element allowed ?

  The SAP error message USMD1501 typically occurs in the context of Master Data Governance (MDG) when there is an issue with the data model configuration, particularly related to the data elements and attributes defined in the hierarchy.
  Cause:
  The error message indicates that there is a problem with the data element configuration for a specific node in the hierarchy. Specifically, it suggests that the data element being referenced is not allowed for the specified hierarchy attribute. This can happen due to several reasons:
  
  Incorrect Data Element Assignment: The data element assigned to a particular attribute in the hierarchy is not compatible or is not allowed for that specific node.
  Hierarchy Configuration Issues: The hierarchy might not be properly configured, leading to inconsistencies in how data elements are defined and used.
  Data Model Changes: If there have been recent changes to the data model, such as adding or modifying attributes, it may lead to this error if the changes are not properly reflected in the hierarchy.
  
  Solution:
  To resolve the USMD1501 error, you can follow these steps:
  
  
  Check Data Element Assignment:
  
  Go to the data model configuration in the MDG application.
  Verify that the data elements assigned to the attributes of the specified node are correct and allowed.
  
  
  
  Review Hierarchy Configuration:
  
  Ensure that the hierarchy is correctly set up and that all attributes are properly defined.
  Check if the hierarchy attribute is correctly linked to the data element.
  
  
  
  Validate Data Model:
  
  If there have been recent changes to the data model, validate the model to ensure that all attributes and data elements are correctly configured.
  Use transaction codes like MDGIMG to access the configuration settings and review the data model.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of MDG you are using. There may be specific guidelines or known issues related to the error.
  
  
  
  Testing:
  
  After making changes, test the configuration by trying to execute the operation that previously resulted in the error to ensure that it has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MDGIMG for configuration and MDG_MAINTAIN for maintaining master data.
  SAP Notes: Check SAP Notes for any updates or patches that may address this specific error.
  Community Forums: Engage with SAP community forums or support channels for additional insights or similar cases encountered by other users.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.