Classes with too low enrollment - parent with registration question

Hello, Posting as a parent - is there anyone here who knows how to find out what the deadline is for decisions on enrollment count to determine whether a course will be cancelled? Daughter needs a one credit course and registered for a 1.5 credit class where she is one of the only 2 students registered for the class out of 15 spots. Looks like bad news but how long should she wait before dropping and reorganizing schedule? Without asking an advisor, just wondering if anyone knows that answer to this. Can’t find this information anywhere on their website. Just curious! Thanks!

Has she tried talking to the department offering the course? She could also reach out to the professor who’s teaching it and ask them.