Rekeying a Schlage Connect smart lock
The short answer is yes.

You may even be able to save yourself some trouble by just swapping the deadbolt core (the small tube that holds the pins). When I first bought my house, I went around and re-keyed all the locks to the same key. I believe as long as the lock is the same brand, it's possible to re-key.

Here is a video showing the removal of the core and re-keying it. If you need to rekey a lock and you don't have the pins for some reason, you can buy a Schlage re-keying set.