If your Professional Certificate expires on June 30th, your coursework must be fully completed before that date with enough time for evaluation and university processing (two weeks is a conservative but safe cushion).
Because Upward is 100% asynchronous, you can finish your final modules as fast as your schedule allows.
Remember, separate from your coursework, you must submit your online application and processing fee via your online account on the FLDOE Certification Online Portal prior to the June 30th expiration date. You do not need to wait for your grades to post or your transcripts to ship before hitting "submit" on the state application.