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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1231 - Data model &1, entity type &2: Namespace &3 has an error ?

  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 in the SAP MDG system. Ensure that all required fields and settings are correctly defined.
  Validate Namespace: Verify that the namespace mentioned in the error message is correctly defined in the system. You can check this in the relevant configuration settings.
  Review Transport Logs: If the issue arose after a transport, check the transport logs for any errors or warnings that may indicate what went wrong during the transport process.
  Recreate or Adjust the Data Model: If the data model or entity type is corrupted, consider recreating it or adjusting the existing configuration to resolve the issue.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve known issues related to the error.
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for additional guidance and troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal 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 found effective.
  MDG Documentation: Review the official SAP Master Data Governance documentation for best practices and guidelines on configuring data models and entity types.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP Support for further assistance.