Just finished implementing what I started yesterday. Yay me.
Feature on my app where you paste in a list of every student's schedules from the software the SU uses. It is parsed into a JSON and sent to the backend where the backend checks each student to see if they exist. If they already exist then it will use the data to update their schedule. If they don't exist then it adds them along with their schedule.
What used to be a big long manual process is a copy, paste, and click.