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Function documentationSystem Trace Locate the document in its SAP Library structure


If you want to record the internal SAP system activities, use the function SAP System Trace (transaction ST01).

The system trace is primarily used when an authorization trace is to be used. The system log or the developer trace are recommended for system monitoring and problem analysis.


The following components can be monitored using the SAP system trace:

        Authorization checks

        Kernel functions

        Kernel module

        Database accesses (SQL trace)

        Table buffers

        RFC calls

        Lock operations (client side)

The last 4 components can also be monitored using Performance Analysis (transaction ST05). For documentation on this, see Structure linkPerformance Trace Overview.

There are two ways of selecting what traces you want displayed. In the initial screen, select the components to be logged, and additional filters, if required. You can reuse the filters and restrictions from the traces that have these settings when the traces are evaluated.

Initial Screen

The initial screen of the system trace looks like this:

This graphic is explained in the accompanying text

Proceed as follows:


  1. Switch on the trace and select the required components:
    Switch Trace On and Off
  2. Perform the tasks that lead to the error or problem.
  3. Switch off the trace.
  4. Evaluate the Trace

Protecting Trace Information from Being Overwritten

If you want to protext a trace from being overwritten later, choose This graphic is explained in the accompanying text Save on the initial screen, or choose Go To Save from the menu.

On the next screen, you can create a short text for a trace, and choose whether the new file that is created specifically for this trace should be automatically created, or whether you want to specify a file. If you do not specify an absolute path, a file of this name is created in the log directory. In the case of automatic file creation, the system determines the filename and stores the file in the log directory. The advantage of this is that, unlike a manually created file, the F4 help can be used for to search for the file from the analysis screen.


If you choose automatic creation, you can delete the file again in this transaction (use the This graphic is explained in the accompanying text button in the analysis screen). This is not possible if you specify a filename. If you want to delete this kind of file, you have to do so at the operating system level.

See also:

You can find further information in the following sections:

System Trace: Administration

System Trace: Relevant Profile Parameters

System Trace: Error Analysis


Enter transaction code ST01. Alternatively, choose Administration System administration Monitor Traces SAP System Trace.




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