How To Fix 0S021 - Error when calling the detailed trace list

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 021

• Message text: Error when calling the detailed trace list

What causes this issue?

This is an internal error. Whilst calling a function module to display
the detailed trace list, an unspecified error occurred.

System Response

Program processing continues after the error message is displayed.

How to fix this error?

If you can reproduce the error, report it to the SAP Hotline.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 0S021 - Error when calling the detailed trace list ?

  The SAP error message 0S021 typically indicates an issue related to the detailed trace list, often encountered when trying to access or analyze performance traces in the SAP system. This error can arise due to various reasons, including authorization issues, system configuration problems, or issues with the trace data itself.
  Causes of Error 0S021
  
  
  Authorization Issues: The user may not have the necessary authorizations to access the detailed trace list. This is common if the user role does not include the required permissions.
  
  
  Trace Data Issues: There may be a problem with the trace data itself, such as corruption or unavailability of the trace files.
  
  
  System Configuration: The system may not be properly configured to generate or display detailed traces, leading to errors when attempting to access them.
  
  
  Technical Issues: There could be underlying technical issues with the SAP system, such as database problems or inconsistencies in the trace data.
  
  
  Solutions to Error 0S021
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the detailed trace list. This can be done by checking the user roles and profiles in transaction SU01 or PFCG.
  The user may need specific authorizations related to performance analysis and tracing.
  
  
  
  Verify Trace Data:
  
  Check if the trace data is available and not corrupted. You can do this by accessing the transaction ST05 (SQL Trace) or ST12 (Combined Trace).
  If the trace data is missing or corrupted, you may need to regenerate the traces.
  
  
  
  System Configuration:
  
  Review the configuration settings for tracing in the SAP system. Ensure that tracing is enabled and properly configured.
  Check the settings in transaction RZ20 (CCMS Monitoring) or RZ11 (Profile Parameters) to ensure that tracing parameters are set correctly.
  
  
  
  Technical Support:
  
  If the issue persists, consider reaching out to your SAP Basis team or technical support for further investigation. They can check for any underlying system issues or logs that may provide more insight into the error.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates available that resolve known issues related to this error message.
  
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ST05 (SQL Trace), ST12 (Combined Trace), SM21 (System Log), and RZ20 (CCMS Monitoring) for troubleshooting.
  SAP Documentation: Refer to the official SAP documentation for detailed information on tracing and performance analysis.
  Community Forums: Check SAP Community forums or other online resources for discussions related to error 0S021, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to diagnose and resolve the error message 0S021 in your SAP system.