<p>i'm signed up to take a SAT Subject Test tomorrow morning but I can't make it... is their any way for me to cancel it and let them know i'm not showing up? will colleges think it was bad i signed up and didn't show up?</p>
<p>just don't show up. It will be cancelled automatically. Colleges will never know that you were planning to take the test that day. Why would they think it was bad if you took it and didn't show it? There are millions of reasons why (sick, family thing, etc.)</p>