How To Fix UGMD128 - Definition of characteristic &1 has changed

SAP Error Message - Details

• Message type: E = Error

• Message class: UGMD - FIN Master Data: Messages

• Message number: 128

• Message text: Definition of characteristic &1 has changed

What causes this issue?

The definition of characteristic &v1& or its associated InfoObject in a
connected BW system has changed. Part of the generated data structures
no longer match the changed definition of this characteristic. Therefore
, a regeneration of the data structures has become necessary.

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?

Regenerate the data structures.

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 UGMD128 - Definition of characteristic &1 has changed ?

  The SAP error message UGMD128, which states "Definition of characteristic &1 has changed," typically occurs in the context of SAP's Business Warehouse (BW) or when working with characteristics in the context of SAP's data modeling tools. This error indicates that the definition of a characteristic (e.g., a field or attribute used in reporting or data analysis) has been modified after it was initially defined or used in a query, report, or data model.
  Cause:
  
  Change in Characteristic Definition: The characteristic in question has been altered, which could include changes to its data type, length, or other properties.
  Inconsistent Data Model: If the characteristic is part of a data model or InfoObject that has been modified, it can lead to inconsistencies in reports or queries that rely on that characteristic.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), and the target system has not been updated accordingly, this error may arise.
  
  Solution:
  
  Check Characteristic Definition: Review the definition of the characteristic in the SAP system to understand what changes have been made. You can do this by navigating to the relevant InfoObject or characteristic in the SAP BW modeling tools.
  Update Queries/Reports: If the characteristic is used in queries or reports, you may need to update those objects to align with the new definition. This may involve adjusting the data types, lengths, or other properties in the queries.
  Re-activate InfoObjects: If the characteristic is part of an InfoObject, you may need to re-activate the InfoObject to ensure that all dependent objects are updated.
  Check Transport Requests: If the issue arose after a transport, ensure that all related objects were transported correctly and that the target system is in sync with the source system.
  Consult Documentation: Review any documentation or change logs related to the characteristic to understand the nature of the changes and their implications.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for UGMD128 for any specific patches or updates related to this error.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  Testing: After making changes, conduct thorough testing to ensure that reports and queries function correctly with the updated characteristic definition.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP BW expert or your organization's SAP support team for further assistance.