How To Fix USMD1524 - Model &1: Relationship and h.attr. fr. ref. &2 used in diff.entity types

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 524

• Message text: Model &1: Relationship and h.attr. fr. ref. &2 used in diff.entity types

What causes this issue?

If relationships of type <LS>Referencing</> have the same name as
hierarchy attributes from references, they must reference the same
entity types. This is not the case here.
The relationship &V2& has the From-entity type &V3&, and the hierarchy
attribute from reference &V2& references the entity type &V4&.

System Response

The data model will not be saved or activated.

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 USMD1524 - Model &1: Relationship and h.attr. fr. ref. &2 used in diff.entity types ?

  The SAP error message USMD1524 typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the relationships and attributes defined for different entity types in a model. This error indicates that a relationship and its corresponding attributes are being used across different entity types, which is not allowed.
  Cause:
  The error message USMD1524 is triggered when:
  
  A relationship defined in a model is being referenced by multiple entity types that are not compatible.
  The attributes associated with that relationship are also defined in a way that they do not align with the entity types involved.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Model Configuration:
  
  Check the model configuration in the SAP MDG system to ensure that the relationships and attributes are correctly defined for the specific entity types.
  Ensure that each relationship is only used within the context of the entity types it is intended for.
  
  
  
  Adjust Relationships:
  
  If a relationship is incorrectly defined across different entity types, you may need to redefine it to ensure it is only associated with the correct entity types.
  Remove or modify any relationships that are causing the conflict.
  
  
  
  Check Attribute Definitions:
  
  Verify that the attributes associated with the relationships are correctly defined and are compatible with the entity types they are linked to.
  If necessary, create separate attributes for different entity types instead of sharing them.
  
  
  
  Testing:
  
  After making the necessary adjustments, test the model to ensure that the error no longer occurs and that the relationships and attributes function as expected.
  
  
  
  Documentation:
  
  Document any changes made to the model for future reference and to help prevent similar issues from arising.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  MDG Documentation: Refer to the official SAP MDG documentation for best practices on defining relationships and attributes within models.
  Community Forums: Engage with SAP community forums or support channels for additional help and to see if others have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the USMD1524 error and implement a solution to resolve it.