SSOL is a web-based registration program. After accepted applicants have activated their Columbia email account they may login to SSOL using their university network identification (UNI, which are the initials of the student name and numbers before @columbia.edu) along with the password they created. Through SSOL students may check their registration appointment times, register, view, update their address, or check for holds which may block their registration. It may be accessed at the following web address: https://ssol.columbia.edu/