How To Fix ANST027 - ON: Buffer trace already activated by &1 (trace user: &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: ANST - ANST Message Class

• Message number: 027

• Message text: ON: Buffer trace already activated by &1 (trace user: &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ANST027 - ON: Buffer trace already activated by &1 (trace user: &2) ?

  The SAP error message ANST027 indicates that a buffer trace is already activated for a specific user in the system. This typically occurs when you attempt to activate a buffer trace while one is already running for the same user. Buffer traces are used for performance analysis and debugging purposes, allowing you to monitor the behavior of the buffer in the SAP system.
  Cause:
  The error occurs because:
  
  A buffer trace has already been activated for the user indicated in the error message.
  The system does not allow multiple traces to be active simultaneously for the same user to avoid confusion and performance issues.
  
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Deactivate the Existing Trace:
  
  You need to deactivate the existing buffer trace for the user. This can typically be done using transaction code ANST (the Analysis Tool).
  Navigate to the "Buffer Trace" section and look for the option to deactivate the trace for the user mentioned in the error message.
  
  
  
  Check Active Traces:
  
  You can check which traces are currently active by using the same transaction (ANST) and reviewing the active traces. This will help you identify if there are any other traces that need to be deactivated.
  
  
  
  Wait for Completion:
  
  If the trace is running for a specific analysis, you may need to wait until it completes before starting a new one.
  
  
  
  Use a Different User:
  
  If you need to run a buffer trace immediately and cannot deactivate the existing one, consider using a different user account to activate a new trace.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  ANST: Analysis Tool for buffer traces.
  ST05: SQL Trace, which can also be useful for performance analysis.
  
  
  
  Documentation: 
  
  Refer to SAP Help documentation for detailed information on buffer tracing and performance analysis.
  
  
  
  Performance Monitoring: 
  
  Regularly monitor and manage buffer traces to ensure that they do not accumulate and affect system performance.
  
  
  
  By following these steps, you should be able to resolve the ANST027 error and successfully manage buffer traces in your SAP system.