How To Fix USMD1260 - Data model &1: namespace or package for structure generation not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 260

• Message text: Data model &1: namespace or package for structure generation not valid

What causes this issue?

We recommend you do not change these entries for data models delivered
by SAP.

System Response

The data model cannot be saved.

How to fix this error?

To enhance a data model delivered by SAP using automatic structure
generation, make the corresponding entries in the view <LS>Prefix and
Packages for Model Enhancements</>.

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 USMD1260 - Data model &1: namespace or package for structure generation not valid ?

  The SAP error message USMD1260 indicates that there is an issue with the namespace or package configuration for structure generation in the context of the Data Model in SAP Master Data Governance (MDG). This error typically arises when the system is unable to find a valid namespace or package for the data model you are working with.
  Cause:
  
  Invalid Namespace: The namespace defined for the data model is not valid or does not exist in the system.
  Package Issues: The package associated with the data model may not be correctly defined or may not have the necessary authorizations.
  Configuration Errors: There may be configuration errors in the data model settings that prevent the system from generating the required structures.
  Transport Issues: If the data model was transported from another system, there may be inconsistencies or missing objects in the target system.
  
  Solution:
  
  
  Check Namespace:
  
  Verify that the namespace defined for the data model is correct and exists in the system. You can check this in the transaction code SE11 (Data Dictionary) or SE80 (Object Navigator).
  Ensure that the namespace follows the correct naming conventions and is properly registered.
  
  
  
  Validate Package:
  
  Check the package associated with the data model. Ensure that it is valid and that you have the necessary authorizations to access it.
  You can check the package in transaction SE80 or SE21 (Package Builder).
  
  
  
  Review Data Model Configuration:
  
  Go through the configuration of the data model in the MDG application. Ensure that all settings are correct and that there are no missing components.
  Use transaction MDGIMG to access the configuration settings for Master Data Governance.
  
  
  
  Transport Consistency:
  
  If the data model was transported, ensure that all related objects were transported correctly. Check for any missing objects or inconsistencies in the target system.
  You may need to re-transport the data model or related objects to resolve any inconsistencies.
  
  
  
  Check for Notes and Patches:
  
  Look for any SAP Notes or patches related to this error message. Sometimes, SAP releases notes that address specific issues or bugs in the system.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for Master Data Governance for any additional guidance on configuring data models and resolving related issues.
  
  
  
  Related Information:
  
  Transaction Codes: SE11, SE80, SE21, MDGIMG
  SAP Notes: Search the SAP Support Portal for any relevant notes that may address this specific error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the USMD1260 error in your SAP system.