Common Appl ID vs Supplement ID ???

<p>Why is the common application id different from the supplement id??? Aren't they supposed to be the same??? Has anyone else noticed this???????</p>

<p>The common app goes to all your colleges that use it, so that number stays the same. The supplement is college specific, and varies by college. It is a little confusing, certainly.</p>

<p>whew! thanks for the reassurance!!</p>