You can generate reports detailing what users are signing on, what responsibilities they are accessing, what forms they are using, what concurrent requests they are submitting, and who is attempting to log on to other users' accounts.
Oracle Applications provide the following Sign-On Audit reports:
Signon Audit Concurrent Requests (shows who submitted what requests)
Signon Audit Forms (shows who accessed what forms)
Signon Audit Responsibilities (shows who accessed what responsibilities)
Signon Audit Unsuccessful Logins (shows who unsuccessfully attempted to sign on as another user)
Signon Audit Users (shows who signed on to Oracle Applications)
For each report, you can also specify search criteria that makes your report as brief as you need.
Auditing User Activity
Setting Up Sign-On Audit
Sign-On Audit Reports