I applied and got into Purdue for the fall 2017 academic year. I also applied to SDSU but unfortunately due to some mishaps with my high school transcripts I still havent received my decision yet (as of April 26,2017). If i send my SIR to Purdue and pay the deposit fee is it possible to withdraw my SIR from Purdue and commit to SDSU if i get in?
Yes but you may lose your deposit, If that is not an issue, no worries.