When do AP scores need to be received by for Cal Poly?

I keep hearing July 15th for transcripts, but is that true with AP scores as well?

If you took some of your AP tests in May, you were asked to fill out the name of the school (SLO) where these scores would be sent automatically. Did you do this? If yes, then SLO should have them by now.
If you are transfer, then you need to request them through CB.

I switched to Cal Poly from UCI, so when I took my AP tests I put down UCI. On the 8th I submitted my AP scores to Cal Poly through CB, the site said it may take 5-9 days to get there which is why I’m worried that there is a deadline, possibly the 15th?

I would check with admissions by the 15th so if they received the scores. They may have received but have not yet updated your portal.