How To Fix USMD1255 - Data model &1: fill namespace/prefix for automatic structure generation

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 255

• Message text: Data model &1: fill namespace/prefix for automatic structure generation

What causes this issue?

Prefix/namespace is not filled.

System Response

Data model specific structures are not generated automatically.

How to fix this error?

Fill Prefix/namespace.

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 USMD1255 - Data model &1: fill namespace/prefix for automatic structure generation ?

  The SAP error message USMD1255 typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the namespace or prefix configuration for automatic structure generation in the data model. This error indicates that the system is unable to generate the necessary structures because the required namespace or prefix is not defined.
  Cause:
  
  Missing Namespace/Prefix: The error usually arises when the data model does not have a defined namespace or prefix for the structures that need to be generated.
  Configuration Issues: There may be issues in the configuration settings of the data model that prevent the system from recognizing or using the specified namespace.
  Inconsistent Data Model: If the data model is not properly set up or is inconsistent, it can lead to this error.
  
  Solution:
  To resolve the USMD1255 error, you can follow these steps:
  
  
  Check Namespace/Prefix Configuration:
  
  Go to the relevant data model in the SAP MDG configuration.
  Ensure that the namespace and prefix are correctly defined for the data model. This can usually be found in the data model settings.
  
  
  
  Define Namespace/Prefix:
  
  If the namespace or prefix is missing, you will need to define it. This can typically be done in the MDG customizing settings.
  Navigate to the relevant customizing transaction (e.g., SPRO) and look for the settings related to the data model.
  
  
  
  Validate Data Model:
  
  Validate the data model to ensure that all required fields and structures are correctly defined.
  Check for any inconsistencies or errors in the data model configuration.
  
  
  
  Regenerate Structures:
  
  After making the necessary changes, try to regenerate the structures for the data model. This can often be done through the MDG application or relevant transaction codes.
  
  
  
  Consult Documentation:
  
  Refer to the SAP Help documentation or notes related to the specific version of SAP MDG you are using for any additional guidance or troubleshooting steps.
  
  
  
  Check for SAP Notes:
  
  Look for any relevant SAP Notes that may address this specific error. Sometimes, SAP releases notes that provide fixes or workarounds for known issues.
  
  
  
  Related Information:
  
  SAP MDG Documentation: Review the official SAP documentation for Master Data Governance for detailed information on data model configuration.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Support: If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to resolve the USMD1255 error and ensure that your data model is correctly configured for automatic structure generation.