How To Fix USMD1254 - Data model &1, entity type &2: Structure name is too long

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 254

• Message text: Data model &1, entity type &2: Structure name is too long

What causes this issue?

The combination of structure name &V4& and namespace &V3& must not
exceed 14 characters.

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?

Shorten the structure name or the namespace.

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 USMD1254 - Data model &1, entity type &2: Structure name is too long ?

  The SAP error message USMD1254 indicates that the structure name for a data model entity type exceeds the maximum length allowed by the system. This error typically occurs in the context of SAP Master Data Governance (MDG) when working with data models and entity types.
  Cause:
  The primary cause of this error is that the name of the structure associated with the entity type is longer than the maximum length permitted by SAP. In SAP, structure names often have a limit of 30 characters, and if the name exceeds this limit, the system will throw this error.
  Solution:
  To resolve the USMD1254 error, you can take the following steps:
  
  
  Check Structure Name: Review the structure name associated with the entity type in your data model. Ensure that it does not exceed the maximum length allowed by SAP.
  
  
  Rename Structure: If the structure name is too long, consider renaming it to a shorter, more concise name that still conveys the necessary information. Ensure that the new name adheres to the naming conventions and length restrictions of SAP.
  
  
  Update Data Model: After renaming the structure, update the data model to reflect the changes. This may involve adjusting references to the structure in various parts of the data model.
  
  
  Test Changes: Once the changes are made, test the data model to ensure that the error no longer occurs and that the functionality is intact.
  
  
  Documentation: Document the changes made to the structure name and the reasons for the change to maintain clarity for future reference.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on naming conventions and limitations for structures and entity types.
  SAP Community: Engage with the SAP Community forums for additional insights and experiences from other users who may have encountered similar issues.
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions related to this error message.
  
  By following these steps, you should be able to resolve the USMD1254 error and ensure that your data model functions correctly within the SAP environment.