How do i UCSD of a change in my planned academic schedule?

hi! I just recently got into UCSD for human developmental sciences. a couple of weeks ago, I dropped a sociology course as I was just taking it for fun, but found it to be too much on my plate. all of the other UCs (besides a couple) have protocols on how you inform them of changes to your academic schedule, but UCSD is one of the ones that don’t. how should I inform them of this change? thank you!!

Contact admissions and ask.