HELP! I accidentally added extra courses on my CSU apps

I submitted my CSU applications yesterday and when I went back to review everything, I noticed that I added 3 extra Band courses in 10th, 11th, and 12th grade. What should I do and will this affect my chance of getting into the schools? I applied to CPP, CSUN, CSULB, CSUF, SFSU, and SDSU.

You will have to email each CSU campus admission office and inform them of the mistake. Keep any documentation you receive back from each school to make sure they have acknowledged the mistake. Include your CSU application ID and other pertinent information for identification purposes.