<p>So, I'm trying to submit my application to an all-in-one institution. I already submitted my supplement, and went to go submit my Common App, but it won't let me! Literally, the option is grayed out. How do I fix this? Help! Thanks =)</p>
<p>Just hit "submit" on the main page. You don't need anything checkmarked. It'll take you to another page where you can finally checkmark an app that you might've already sent the supplement for, and submit it.</p>
<p>Thanks a lot! Seriously, I was starting to freak out. But, now everything's solved. Thanks!</p>