How To Fix USMD1751 - Data model &1, entity type &2: Prefix is irrelevant

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 751

• Message text: Data model &1, entity type &2: Prefix is irrelevant

What causes this issue?

Prefixes for entity types are beneficial only if one of the following
values for the <DS:DE.USMD_KEY_HANDLING>key assignment</> was selected
in data modeling:
<LB>Internal Key Assignment</>
<LB>Key Can Be Changed; Internal Key Assignment Possible</>

System Response

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

How to fix this error?

Either delete the entry or adjust the settings of the entity type in
data modeling.

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 USMD1751 - Data model &1, entity type &2: Prefix is irrelevant ?

  The SAP error message USMD1751 typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the data model configuration, specifically related to entity types and their prefixes. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  The error message "USMD1751 Data model &1, entity type &2: Prefix is irrelevant" indicates that there is a mismatch or an issue with the prefix configuration for the specified entity type in the data model. This can happen due to several reasons:
  
  Incorrect Prefix Configuration: The prefix defined for the entity type may not be relevant or correctly set up in the data model.
  Data Model Inconsistency: There may be inconsistencies in the data model configuration, such as missing or incorrect entries.
  Entity Type Definition Issues: The entity type may not be properly defined or may have been modified incorrectly.
  
  Solution:
  To resolve the USMD1751 error, you can follow these steps:
  
  
  Check Data Model Configuration:
  
  Go to the SAP MDG configuration transaction (usually MDGIMG).
  Navigate to the relevant data model and check the configuration for the entity type mentioned in the error message.
  Ensure that the prefix is correctly defined and relevant to the entity type.
  
  
  
  Review Entity Type Definition:
  
  Verify the definition of the entity type in the data model.
  Ensure that all required fields and attributes are correctly defined and that there are no inconsistencies.
  
  
  
  Adjust Prefix Settings:
  
  If the prefix is not needed for the entity type, consider removing it or adjusting it to match the expected configuration.
  If the prefix is required, ensure that it is correctly set up in accordance with the naming conventions used in your organization.
  
  
  
  Transport Requests:
  
  If changes were made in a development environment, ensure that they are properly transported to the quality and production environments.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of MDG you are using for any additional guidance on configuring data models and entity types.
  
  
  
  Testing:
  
  After making the necessary changes, test the data model to ensure that the error no longer occurs and that the entity type functions as expected.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  MDG Documentation: Review the official SAP MDG documentation for best practices on data model configuration and entity type management.
  
  By following these steps, you should be able to identify and resolve the issue causing the USMD1751 error in your SAP MDG environment.