Common app

On the common app for Case, i just realized i forgot to fill out the how did you hear about CWRU section. I already sent in the app for EA. Is it worth it to call and ask them if I can update that or is it negligible? thanks

Is that a CWRU specific question or one on the common app?

I would imagine that is to gain insight on how people find out about CWRU, but also for you to show interest in Case.
Have you done some of the things in this post? http://talk.collegeconfidential.com/case-western-reserve-university/1929524-how-to-show-interest-in-cwru-2016-edition.html#latest

You could always ask your admissions counselor this question…but include how you hear about CWRU in your inquiry.
But in general, I don’t think it would be a big deal.

I have so I was wondering if I should take the time to call them and ask them if I could update

I think it never hurts to cross your t’s and dot your i’s. If it is bothering you go ahead and see if you can correct it, especially if they see it as a way to show interest. I know some schools tend to be big on that, and I think CWRU is one of those. My D was accepted last year with merit and it was actually one of my favorite campus tours. Good luck.