If you need to analyse an authorization issue, try the following:
You can display the Authorization data for your own user with SU53.
This will show you the authorization object which failed.
If you need to go further back in your history you can access your user buffer with transaction SU55.
If you wish to check the authorization buffer of a different user you can simply select “F5″ from within SU55.
You can also select GoTo –> Failed authorization check to show the failed authorizations.
You can view your own authorization profiles in SU01D in the tab “Profiles”.
The SUIM transaction gives you a central information system for authorizations - which gives you data such as “List all authorizations for a specific user.