Does my email have to be the same for commonapp, sat and act?

To successfully send my scores through the commonapp, do i have to have been registered with all three things with the same email?

You send scores and Common App separately, through their respective websites. The same email isn’t required, but try to keep it consistent so the school can easily put all the info into the same file without mixups.

Oh okay thankyou. But just saying if i registered for sat with one email and act with another.

Those are separate companies so it is fine.
I recommend having an email that is not like “magicalunicorns@blob.com” but firstname.lastname@gmail.com

Maybe create a new email account just for college communications.

^ That is what we did plus if you need to give your parents temporary access while away on a senior trip there will be nothing in it that you dont want them to see