How To Fix UCL2025 - Cannot determine the source data structure for the log data

UCL2025 - Overview

• Message type: E = Error

• Message class: UCL2 - Messages for Audit Trail Definition

• Message number: 025

• Message text: Cannot determine the source data structure for the log data

What causes this issue?

The log displays the source data structure. However, this source data
structure cannot be determined correctly.

System Response

The log cannot be saved.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

UCL2025 - Details

• The SAP error message UCL2025, which states "Cannot determine the source data structure for the log data," typically occurs in the context of data extraction or data processing within SAP systems, particularly when dealing with data logging or data transfer processes.
  
  Cause:
  
  
  Missing or Incorrect Configuration: The source data structure may not be properly configured in the system. This could be due to missing entries in the relevant configuration tables or incorrect settings in the data source definition.
  
  
  Data Source Not Active: The data source from which the log data is being extracted may not be active or may have been deactivated.
  
  
  Inconsistent Data Model: Changes in the underlying data model (e.g., changes in the database structure or data source) that are not reflected in the log data configuration can lead to this error.
  
  
  Authorization Issues: Lack of proper authorizations to access the data source or log data can also trigger this error.
  
  
  Technical Issues: There