The filter choices you make in Schedule Builder will determine what courses are returned as options. For non-orientation students, within My Filters, deselecting the "Available to Me" option will return courses that are full, have prerequisites you haven't met, and/or have course restrictions. You can also override the "Available to Me" filter at the course level.
After adding courses requiring prerequisites to your Course Cart, you will see a red "Missing Prerequisites" alert under the Course Title.
Clicking that alert will tell you what the pre-requisites are and your next steps in submitting a “Prerequisite Permission to Enroll” form, which needs to be processed before Schedule Builder will create schedules for you. The form requires the enrollment session, course number, and the reason you require permission to take that course. Once the form been processed, if you do meet the prerequisites through current or previous coursework, you will be able to create schedules with that course included.
Visit the Prerequisite Information page on the Office of the Registrar's website for more detailed information about prerequisites.