How To Fix RSTT0177 - Trace ID '&1' is not unique; ID will be replaced by '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTT0 - Trace Tool: Message Class Engine Layer

• Message number: 177

• Message text: Trace ID '&1' is not unique; ID will be replaced by '&2'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSTT0177 - Trace ID '&1' is not unique; ID will be replaced by '&2' ?

  The SAP error message RSTT0177 indicates that there is a conflict with the Trace ID in the SAP system. Specifically, it means that the Trace ID you are trying to use is not unique, and as a result, the system will replace it with another ID to ensure uniqueness.
  Cause:
  
  Duplicate Trace IDs: The primary cause of this error is that the Trace ID you are attempting to use already exists in the system. This can happen if multiple processes or sessions are trying to log traces with the same ID.
  System Configuration: There may be a configuration issue or a bug in the system that is causing Trace IDs to not be generated uniquely.
  
  Solution:
  
  Check Existing Traces: Review the existing trace logs to identify if the Trace ID you are trying to use is already in use. You can do this by navigating to the transaction code ST01 (System Trace) or ST05 (SQL Trace) and checking the active traces.
  Use a Unique Trace ID: If you are manually specifying a Trace ID, try using a different, unique ID that is not currently in use.
  System Restart: In some cases, restarting the application server or the entire SAP system may help resolve conflicts with Trace IDs.
  Update SAP: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve any underlying bugs related to trace logging.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like ST01 (System Trace), ST05 (SQL Trace), and ST22 (Dump Analysis) for monitoring and analyzing traces.
  SAP Documentation: Refer to the official SAP documentation for more details on tracing and logging in SAP systems.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP Basis team or SAP support for further assistance.