How To Fix USMD1527 - Data model &, entity type &2: Cannot be used as a hierarchy node

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 527

• Message text: Data model &, entity type &2: Cannot be used as a hierarchy node

What causes this issue?

In Customizing activity <DS:SIMG.MDG_VC_USMD006>Define Field Properties
for UI</>, entity type &V2& has been set to invisible to end users.
Therefore, it must not be used in a hierarchy.

System Response

The system cannot activate the data model.

How to fix this error?

Delete entity type &V2& from the hierarchy in Customizing activity
<DS:SIMG.FMDM_USMD001>Edit Data Model</>.

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 USMD1527 - Data model &, entity type &2: Cannot be used as a hierarchy node ?

  The SAP error message USMD1527 indicates that there is an issue with the data model and entity type in the context of using a hierarchy node. This error typically arises in the context of SAP Master Data Governance (MDG) when trying to create or manage hierarchies for master data entities.
  Cause:
  The error message "Cannot be used as a hierarchy node" usually occurs due to one of the following reasons:
  
  
  Entity Type Restrictions: The entity type you are trying to use as a hierarchy node may not be configured to support hierarchical structures. Not all entity types are designed to be used in hierarchies.
  
  
  Data Model Configuration: The data model may not be set up correctly to allow the specified entity type to function as a hierarchy node. This could be due to missing configurations or incorrect settings in the data model.
  
  
  Hierarchy Node Definition: The specific entity type may not have the necessary attributes or relationships defined to be used as a hierarchy node.
  
  
  Versioning Issues: If there are multiple versions of the data model or entity type, you may be trying to use an outdated or incorrect version.
  
  
  Solution:
  To resolve the USMD1527 error, you can take the following steps:
  
  
  Check Entity Type Configuration:
  
  Verify that the entity type you are trying to use is indeed configured to be a hierarchy node. This can be done in the data model configuration settings.
  
  
  
  Review Data Model Settings:
  
  Go to the data model configuration in SAP MDG and ensure that the entity type is correctly defined to support hierarchical relationships. Check for any missing configurations.
  
  
  
  Update Hierarchy Node Definition:
  
  If the entity type is supposed to be a hierarchy node, ensure that it has the necessary attributes and relationships defined. You may need to modify the data model to include these.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for your specific version of MDG to understand the requirements for hierarchy nodes and how to configure them properly.
  
  
  
  Test with Different Entity Types:
  
  If possible, try using a different entity type that is known to work as a hierarchy node to see if the issue persists.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue through the above steps, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  SAP Master Data Governance (MDG): This is a solution for managing master data across the enterprise, ensuring data quality and consistency.
  Data Model Configuration: In SAP MDG, the data model defines the structure of master data entities, including their attributes and relationships.
  Hierarchy Management: Hierarchies are used in master data to represent relationships between different entities, such as organizational structures or product categories.
  
  By following these steps and understanding the context of the error, you should be able to address the USMD1527 error effectively.