Bring customers back with a points club
They earn on this order. They spend on the next one. The club lives under Customers and orders.

A points club is why someone comes back. They earn on this order and spend on the next.
Open Customers and orders → Points Club. Points Club Management is the list. Settings is the page next to it.
Status can sit on Disabled. The add-on is Points & Tiers System. Turn the club on after that add-on is active.
On a product, open the Points Club block and set Cost in Points if that item should be redeemable.
Questions about the points club
Customers and orders → Points Club. You get Points Club Management and Settings from there.
The club needs the Points & Tiers System add-on. Status can stay Disabled until that add-on is on.
Open the product → Points Club → Cost in Points. That is on the product, not only in Settings.
Give shoppers a reason to return
Points Club is already in the admin, under Customers and orders.