Common App Score Reporting vs. Individual School

Hi all

So I’m applying to schools that require all ACT scores and SAT scores sent. However, I only am reporting my ACT and SAT2 scores on my common app. I took the SAT once, got a 2060 and decided to take the ACT which I received a 35 on. Do I have to submit this SAT score?
Also how can colleges verify if you used score choice or not? I’m a bit unsure about the whole process