How To Fix WS338 - The application log is not active, display not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 338

• Message text: The application log is not active, display not possible

What causes this issue?

The application log is not active. As a result, display is not
possible.

System Response

The function cannot be performed.

How to fix this error?

As a rule, this is due to an internal program error.

Procedure for System Administrators

Please contact SAP.
Function module &V1& was called incorrectly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS338 - The application log is not active, display not possible ?

  Certainly! Here's detailed information about the SAP error message WS338: "The application log is not active, display not possible":
  
  Error Message
  WS338: The application log is not active, display not possible
  
  Cause
  This error occurs when you try to display an application log in SAP, but the application log object or the specific log is not active or has not been created/initialized properly. The application log functionality in SAP requires that the log object be active and that logs exist for the object to be displayed.
  Common causes include:
  
  The application log object has not been activated in transaction SLG0.
  No logs have been written for the specified object and subobject.
  The log was deleted or not created due to errors in the application.
  The log display is attempted before the log creation process completes.
  
  
  Explanation
  SAP application logs are used to record messages and events for various business processes. These logs are managed via the Application Log tool (transaction SLG1 for display, SLG0 for configuration). If the log object is inactive or no logs exist, SAP cannot display the log, resulting in WS338.
  
  Solution / How to Fix
  
  
  Check Activation of the Log Object:
  
  Go to transaction SLG0 (Application Log: Object Maintenance).
  Enter the relevant Object and Subobject.
  Check if the log object is active.
  If inactive, activate it by selecting the object and choosing Activate.
  
  
  
  Verify Log Creation:
  
  Ensure that the application or program is correctly writing logs to the application log.
  Check the program or process that should create the log to confirm it is running without errors.
  
  
  
  Display Logs Correctly:
  
  Use transaction SLG1 to display logs.
  Enter the correct Object, Subobject, and other selection criteria.
  If no logs exist, the display will not be possible.
  
  
  
  Check Authorizations:
  
  Ensure the user has the necessary authorizations to view the application logs.
  
  
  
  Re-run the Process:
  
  If the log was not created due to an error, re-run the process that generates the log after fixing any issues.
  
  
  
  
  Additional Information
  
  
  Transaction Codes:
  
  SLG0 – Application Log: Object Maintenance (activate/deactivate log objects)
  SLG1 – Application Log: Display Logs
  SLG2 – Application Log: Delete Logs
  
  
  
  SAP Notes:
  
  Sometimes, specific SAP Notes may address issues related to application logs for particular modules or components.
  
  
  
  Related Tables:
  
  Application log data is stored in tables such as BALHDR (log header), BALDAT (log data), and BALDATI (log data items).
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Application log object inactive or no logs exist.
  
  
  Effect
  Cannot display application log (WS338 error).
  
  
  Solution
  Activate log object in SLG0; ensure logs are created; use SLG1 to display.
  
  
  Tools
  SLG0, SLG1, SLG2
  
  
  
  
  If you need help with a specific application log object or further troubleshooting, please provide the object name or the context in which the error occurs.