How To Fix USMD1231 - Data model &1, entity type &2: Namespace &3 has an error

USMD1231 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 231

• Message text: Data model &1, entity type &2: Namespace &3 has an error

What causes this issue?

The namespace you entered is not valid.
You can find the namespaces in database table TRNSPACET. SAP Note 105132
explains how to reserve a namespace.

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?

If you do not want to use a customer-specific namespace, use /MDG/. If
you do not enter a namespace, /MDG/ is used automatically.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

USMD1231 - Details

• The SAP error message USMD1231 typically indicates that there is an issue with the data model or entity type in the context of SAP Master Data Governance (MDG). This error can arise due to various reasons, such as configuration issues, missing or incorrect definitions, or problems with the namespace.
  
  Cause:
  
  Incorrect Configuration: The data model or entity type may not be configured correctly in the system.
  Missing Definitions: Required definitions for the data model or entity type may be missing or incomplete.
  Namespace Issues: The namespace specified in the error message may not be correctly defined or may not exist in the system.
  Transport Issues: If the data model or entity type was transported from another system, there may have been issues during the transport process.
  Version Mismatch: There may be a version mismatch between the data model and the underlying database or application.
  
  
  Solution:
  
  Check Configuration: Review the configuration settings for the data model and entity type