<p>I am trying to fill out the “Applicant” part of the Common App. After completing all of the blanks and saving and checking for errors, it says that my SSN1 is invalid even though I’ve double checked and the number matches what it says on my Social Security Card. I just received my green card in July and my SSN in September so I don’t know if that is the reason why my SSN isn’t recognized. I have a deadline on December 1st and I was wondering how I can resolve this problem.</p>