How To Fix 0S159 - The HTTP trace has not been activated

SAP Error Message - Details

• Message type: E = Error

• Message class: 0S - Messages for the SQL trace

• Message number: 159

• Message text: The HTTP trace has not been activated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 0S159 - The HTTP trace has not been activated ?

  The SAP error message 0S159 indicates that the HTTP trace has not been activated in the system. This error typically arises when you are trying to analyze HTTP requests or responses, but the tracing functionality is not enabled.
  Cause:
  The primary cause of this error is that the HTTP trace feature in the SAP system is not activated. This can happen for several reasons:
  
  The HTTP trace has not been configured or enabled in the system settings.
  The user does not have the necessary authorizations to activate the HTTP trace.
  The system may be in a state where tracing is not allowed or is disabled for performance reasons.
  
  Solution:
  To resolve the error 0S159, you can follow these steps:
  
  
  Activate HTTP Trace:
  
  Go to transaction code SICF (HTTP Service Hierarchy Maintenance).
  Navigate to the service you want to trace (e.g., the service for your application).
  Right-click on the service and select "Trace" to activate the HTTP trace.
  Alternatively, you can use transaction SMICM (ICM Monitor) to activate the HTTP trace:
  
  In the ICM monitor, go to "Trace" > "HTTP Trace" and activate it.
  
  
  
  
  
  Check Authorizations:
  
  Ensure that your user has the necessary authorizations to activate and view HTTP traces. You may need to consult with your SAP security team to verify your roles and permissions.
  
  
  
  Check System Settings:
  
  Ensure that the system is not in a restricted state where tracing is disabled. This can be checked in the system configuration settings.
  
  
  
  Review Documentation:
  
  Consult the SAP Help Portal or relevant documentation for more detailed instructions on enabling HTTP tracing specific to your SAP version.
  
  
  
  Restart ICM:
  
  In some cases, you may need to restart the Internet Communication Manager (ICM) for the changes to take effect. This can be done through transaction SMICM.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SICF: For managing HTTP services.
  SMICM: For monitoring and managing the Internet Communication Manager.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or fixes related to HTTP tracing and error 0S159.
  
  
  
  Performance Considerations:
  
  Be cautious when enabling HTTP tracing in a production environment, as it can impact system performance. It is often recommended to enable tracing only for troubleshooting purposes and to disable it afterward.
  
  
  
  By following these steps, you should be able to resolve the error message 0S159 and successfully activate the HTTP trace in your SAP system.