How To Fix UCL2004 - One or more messages were hidden in the log

SAP Error Message - Details

• Message type: E = Error

• Message class: UCL2 - Messages for Audit Trail Definition

• Message number: 004

• Message text: One or more messages were hidden in the log

What causes this issue?

One or more messages are hidden in the log.

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?

If you want to make these messages visible, change the Customizing
setting for "Suppress Messages in Logs" in transaction uc00.

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 UCL2004 - One or more messages were hidden in the log ?

  The SAP error message UCL2004, which states "One or more messages were hidden in the log," typically indicates that there are additional messages or warnings that were not displayed in the user interface due to the system's message handling settings. This can occur in various contexts, such as during data processing, report execution, or transaction processing.
  Cause:
  
  Message Filtering: SAP has different message types (e.g., information, warning, error) and can filter messages based on severity. If the system is set to only display certain types of messages, others may be hidden.
  Log Settings: The log settings in the transaction or program may be configured to suppress certain messages.
  Batch Processing: In batch processing scenarios, some messages may be logged but not displayed to the user immediately.
  User Authorizations: Sometimes, user roles and authorizations can restrict the visibility of certain messages.
  
  Solution:
  
  Check the Log: Access the log to view the hidden messages. You can usually find logs in the transaction where the error occurred or by using transaction codes like SLG1 (Application Log) or SM21 (System Log).
  Adjust Message Settings: If you have the necessary authorizations, you can adjust the message settings in the relevant transaction or program to ensure that all messages are displayed.
  Review User Authorizations: Ensure that your user role has the necessary permissions to view all messages. If not, contact your SAP administrator to adjust your role.
  Debugging: If you are a developer or have access to debugging tools, you can debug the program to identify where the messages are being generated and why they are being suppressed.
  Consult Documentation: Review the documentation for the specific transaction or program to understand its message handling behavior.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the specific transaction or program you are using. SAP Notes often provide solutions or workarounds for common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes for logging and monitoring, such as SLG1 (Application Log), SM21 (System Log), and ST22 (Dump Analysis).
  
  If the issue persists after following these steps, it may be beneficial to escalate the matter to your SAP support team or consult with an SAP expert for further assistance.