How To Fix USMD1752 - Data model &1, entity type &2: Prefix is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 752

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

What causes this issue?

Prefixes for temporary keys must fulfill the following conditions:
They are not allowed to be blank.
They are not allowed to begin with a space.
For entity types that have solely internal key assignment, the prefix is
not allowed to be numeric.
For entity types that have internal key assignment, the prefix must not
contain any of the following characters:
%
*
?
'

System Response

The system does not save the data.

How to fix this error?

Change the prefix.

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 USMD1752 - Data model &1, entity type &2: Prefix is invalid ?

  The SAP error message USMD1752 typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the data model configuration, specifically related to the prefix used for entity types. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  
  Invalid Prefix: The error indicates that the prefix defined for the entity type in the data model is not valid. This could be due to:
  
  The prefix not adhering to naming conventions.
  The prefix being used inappropriately or being reserved for other purposes.
  A mismatch between the expected prefix and what is defined in the system.
  
  
  
  Configuration Issues: There may be issues in the configuration of the data model or entity types, such as incorrect settings in the data model definition.
  
  
  Solution:
  
  
  Check Prefix Configuration:
  
  Go to the data model configuration in the SAP MDG application.
  Verify the prefix defined for the entity type in question. Ensure that it follows the naming conventions (e.g., it should not contain special characters, should be of appropriate length, etc.).
  
  
  
  Modify the Prefix:
  
  If the prefix is indeed invalid, modify it to a valid one. Ensure that it is unique and does not conflict with existing prefixes in the system.
  
  
  
  Review Data Model Settings:
  
  Check the overall configuration of the data model and ensure that all entity types are correctly defined with valid prefixes.
  Ensure that there are no typos or misconfigurations in the data model settings.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidelines on naming conventions and data model configurations.
  
  
  
  Transport Requests:
  
  If changes are made, ensure that they are included in the appropriate transport requests for consistency across different environments (development, testing, production).
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on data model configuration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  MDG Configuration Guide: Review the Master Data Governance configuration guide for best practices and detailed instructions on setting up data models and entity types.
  
  By following these steps, you should be able to resolve the USMD1752 error and ensure that your data model is correctly configured.