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Author's profile photo Laszlo Thoma

SAP GUI – Transaction Code – SM21

last updated: 2023-07-10


The article explains the SAP GUI – TCODE (Transaction Code): SM21 usage in details.



Transaction Code SM21 is the system log.


SM21 – Tools -> Administration -> Monitor -> System Log

Screen: Display the system log

Initial screen where the required filters can be selected based on the actual need.

Basic attributes

  • Date – filter the desired date condition
  • Time – filter the desired time condition
  • User – specific user name or user name with * character (e.g. USER001 or USER*)
  • Client – filter the desired client
  • etc.

Extended attributes

  • Extended Instance Name – filter the desired instance
  • Transaction Code – filter the desired trans. code
  • Process No. – filter the desired work process
  • etc.

Screen: Syslog messages

List of the result based on the filtered criteria.

Open the item with double click on the requested row.

Screen: Syslog log details view

Further information.

❗Note: with “Trace” button we can go directly to the specific development trace file. Same screen than ST11.

Screen: Trace Data

The trace file which belongs to the syslog message.

Based on ‘Date’ and ‘Time’ information the error can be identified.

To export the content use menu: System -> List -> Save -> Save or Local File.

❗Remark: In most cases, the development trace contains all the information needed to address the issue. No further steps are required. In some cases, a deeper analysis is required and additional steps may be required; for example, when the development trace shows a database-related error message, it may be useful to check the problem from the database perspective.

✍️ Where can I find knowledge and information belongs to SAP HANA? ➡️ Full System Info Dump (FSID)

Which SAP Knowledge Base Article belongs to the topic?

  • 712706 – Program RSLGVIEW – reading the SAP system log without system
  • 2194685 – How to find work process trace for SM21 System Log or ST22 dump
  • 2399990 – How-To: Analyzing ABAP Short Dumps in SAP HANA Environments

Other articles in this series

Do you have further questions?

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SAP Community for SAP GUI:


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Release Information

Release Date Description
2023.07.10 First/initial Release of the SAP Blog Post documentation (Product Information).


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