How To Fix USMD1023 - Data model &1, entity type &2: Attribute &3 is assigned more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 023

• Message text: Data model &1, entity type &2: Attribute &3 is assigned more than once

What causes this issue?

You <zh>cannot</> assign multiple attributes with identical names to an
entity type with <DS:DE.USMD_USAGE_TYPE>storage and use type</> <ZH>
<LS>1</></>. This applies to both direct and indirect assignments (using
other entity types with storage and use type <LS>4</>).

System Response

The data model cannot be saved or activated.

How to fix this error?

Use different names for the attributes.

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 USMD1023 - Data model &1, entity type &2: Attribute &3 is assigned more than once ?

  The SAP error message USMD1023 indicates that there is a problem with the data model configuration in the SAP Master Data Governance (MDG) system. Specifically, it means that an attribute in a data model is assigned more than once to an entity type, which is not allowed.
  Cause:
  The error occurs when:
  
  An attribute is mistakenly defined multiple times for the same entity type in the data model.
  There may be a misconfiguration in the data model where the same attribute is included in multiple places, leading to ambiguity in data handling.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check the Data Model Configuration:
  
  Go to the data model configuration in the SAP MDG system.
  Identify the entity type mentioned in the error message.
  Look for the attribute that is causing the issue (as indicated by the error message).
  
  
  
  Remove Duplicate Assignments:
  
  Ensure that the attribute is only assigned once to the entity type.
  If the attribute is needed in multiple contexts, consider creating a new attribute or using a different approach to model the data.
  
  
  
  Validate the Data Model:
  
  After making changes, validate the data model to ensure that there are no other issues.
  Use the relevant transaction codes (like MDGIMG or MDG_MAINTAIN) to check the integrity of the data model.
  
  
  
  Transport Changes:
  
  If you are working in a development environment, ensure that the changes are transported to the quality and production environments after thorough testing.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on data model configuration and best practices.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MDGIMG: Access the MDG Implementation Guide.
  MDG_MAINTAIN: Maintain master data and data models.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Community Forums:
  
  Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  
  
  By following these steps, you should be able to identify and resolve the cause of the USMD1023 error in your SAP MDG system.