How To Fix S#726 - Trace is already active for another user

SAP Error Message - Details

• Message type: E = Error

• Message class: S# -

• Message number: 726

• Message text: Trace is already active for another user

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message S#726 - Trace is already active for another user ?

  The SAP error message "S#726 Trace is already active for another user" typically occurs when a user attempts to start a trace (such as a performance trace or SQL trace) while a trace is already active for the same session or for another user. This can happen in various scenarios, particularly when using transaction codes like ST01 (System Trace) or ST05 (SQL Trace).
  Cause:
  
  Active Trace: The primary cause of this error is that a trace is already running for the user or session. SAP does not allow multiple traces to be active simultaneously for the same user or session to avoid conflicts and ensure data integrity.
  Session Conflicts: If a user has multiple sessions open and tries to start a trace in one session while it is already active in another, this error can occur.
  User Lock: Sometimes, traces may be locked due to system settings or configurations, preventing other users from starting a trace.
  
  Solution:
  
  Check Active Traces: Before starting a new trace, check if there are any active traces for your user or session. You can do this by using transaction codes ST01 or ST05 and looking for any active traces.
  Stop Existing Trace: If you find that a trace is already active, you can stop it by using the same transaction code (ST01 or ST05) and selecting the option to deactivate the trace.
  Use Different User: If you need to run a trace and it is already active for your user, consider using a different user account to start the trace, provided you have the necessary permissions.
  Session Management: Ensure that you are not trying to start a trace in multiple sessions simultaneously. Close any unnecessary sessions or deactivate the trace in the session where it is already active.
  Consult Documentation: If the issue persists, refer to SAP documentation or consult with your SAP Basis team for further assistance, as there may be specific configurations or limitations in your SAP environment.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the relevant transaction codes for tracing in SAP:
  
  ST01: System Trace
  ST05: SQL Trace
  ST12: Combined Trace
  
  
  User Permissions: Ensure that you have the necessary authorizations to start and stop traces in your SAP system.
  SAP Notes: Check for any relevant SAP Notes that may address this issue or provide additional troubleshooting steps.
  
  If you continue to experience issues, it may be beneficial to reach out to your SAP support team for further investigation and assistance.