The trace in transaction STAUTHTRACE is the detailed version of the traces available using the trace button in transaction SU22. It works in the same way as the System Trace (transaction ST01). However, it only evaluates authorization checks.
The system writes the trace data in the current trace file.
If you choose Filter Duplicate Entries, identical authorization checks (consisting of the same combination of authorization object, fields, and values) that the trace recorded at two different times are only displayed once.
You can use the standard ALV functions to filter the read trace records in the result list. The following functions are also available:
Display callpoints in ABAP programs
You can use the Callpoints button to find the points in the program at which the authorization check is performed with this object, field, and value.
Display authorization object
Documentation for authorization object