<p>I submitted my application last Tuesday (09/30) evening, got the first confirmation email instantaneously, and then the next confirmation email the next morning.</p>
<p>However, I still haven't received the final email that has my ID number.</p>
<p>I know plenty of people who submitted that same evening and received that final email on Thursday/Friday.</p>
<p>Should I be worried?</p>
<p>It's nothing major to worry about, it took me 6 days to get mine in August but I can see it taking longer as the application season goes on or if you are a "new record" (in that the University of Michigan has never heard of you previously by pre-registering, submitting test scores, or attending an event, and therefore you've not been assigned a UM ID prior to your application).</p>
<p>If you call the Office of Undergraduate Admissions, they will give you your UM ID over the phone.</p>