Oct SAT School Day vs Oct SAT

My school just told us that we will be doing the SAT School day test in October, but a lot of people are already registered for the Oct SAT. Are they the same test? I know the ACT more than the SAT so I’m just worried that I basically wasted 50 bucks. Thanks!

They’re unlikely to be the same test.

They won’t be the same test.

As for your $50… If you mean that you registered for the national Oct date, you can change to a later date (assuming that you’d like a chance to breathe between administrations). If you mean that you signed up for the ACT not knowing that you’d be doing School Day SAT testing, I’d still take the ACT.
https://collegereadiness.collegeboard.org/sat/register/policies-requirements/changes