To launch PSI exam, please log into your Adobe Credential Management Account.

On Adobe Credential Management account home page, click on "Scheduling" or "Schedule/Modify Exam Appointment" (As below)

On "Scheduling" page, click on "PSI (TC, OP)" for the exam you registered under "Adobe Certified Expert Exams" (As below)

"Schedule exam" link will open your PSI Dashboard (As below). Click "Launch Exam" to start your ACE Exam