Help with debugging SU01

[Former Member]

Hello All,

I am very new to SAP. I am currently playing around with ABAP Debugger. What exactly I am trying is that, I am in su01 screen and then I hit '/h'. After that, I enter a username which doesn't exist and then click on Edit. I get redirected to debugger session where I set breakpoint at ABAP command 'authority-check', after pressing F8 I get to know which exact authorization objects are being checked.

Here are my doubts:

1. How to know which exact authorization-check failed ?

2. How to see the exact tables from where the data is being checked or data is being updated into ?

3. Using SE93 I got to know that program for SU01 is SAPMSUU0, but in debugger session I never get to see this program name.. can someone explain me how things are working behind the scenes ?

Thanks in Advance 🙂

[TammyPowlas]

The best answer to this if you want to understand authorizations is to use transaction STAUTHTRACE - it will answer questions 1 and 2. If you are trying to learn the debugger, it would be better (in my view) to try to debug a program and not a specific transaction

[Former Member]

Can you give me example of a scenario where st01, su53, stauthtrace may fail and there will be need for ABAP debugger?

[TammyPowlas]

I don't use ST01 anymore and if SU53 gives false information, STAUTHTRACE provides everything. No need to debug anything if you use STAUTHTRACE.

[matt]

Why don't you use ST01?

[TammyPowlas]

I used to use ST01 until Colleen on this forum said STAUTHTRACE is better; now I’m a believer 🙂

[matt]

Hmm. Never used it. I'll have a look.

(In some places I use a tool I wrote for a company that sells that tool - among other things. It's rather good).

[matt]

If you want to find failed auth checks, you should use ST01 and trace them.

SAPMSUU0 is a system program. If you want to debug it, you need to set the flag in the debugger options.

[srikanthnalluri]

You can check failed authorization checks in the SU53 (For other users - Menu->Authorization Values->Other User) .