Unable to Schedule Appian Certified Associate Developer Exam via ProctorU

Dear Support Team,

I am trying to schedule my Appian Certified Associate Developer exam, but I encountered the following issue when accessing ProctorU:

"This Institution does not permit creating a ProctorU account. Please navigate to your course Learning Management System for scheduling and rescheduling ProctorU reservations."

I attempted to register directly on ProctorU, but I was not able to proceed. I understand that scheduling must be done through the Learning Management System, but I am unsure where exactly to do this inside Appian Academy.

Could you kindly assist or guide me through the correct steps to schedule the exam?

Thank you in advance for your support.

Best regards,