Second Semester Schedule Change

Recently for my senior year, I dropped my sixth period class (Digital Graphics) for a free sixth. I notified the UC center of the change but what do I do about the CSUs? I’m at a lost. I contacted the CSU system and they said I can’t change my application after sending it, that I have to notify my colleges of application changes but I’m at a lost. Do I notify the colleges of the schedule change or do I wait till I send in my transcript? The change is only with that one class. Thanks for the help in advance!