Common App: Sending additional teacher rec online, after app submitted

<p>I have already submitted a complete application to Duke, via the common app online. My 2 teachers and 1 counselor also did their recommendations online. The supplement and payments were all done online through the Common App as well.</p>

<p>Now… when I go to “school forms” for Duke, I notice that I can add another teacher. If I add a third teacher, will Duke receive it? Everything has already been sent.</p>

<p>Thanks</p>