If you have enabled reward points and want customers to be able to pay with their points, you will need to make sure that "Reward Points Payment Option" is set to allow customers to pay directly with their reward points:
- Log in to your store's admin panel
- Click on Marketing (left-hand menu) and then click on Reward Points.
- Make sure "Reward Points Payment Option" is set to "Allow."
If the customer has accumulated points, they will be able to redeem their points on the checkout page, as long as they are logged in.
In the Payment section, they will see the option "Use my reward point(s)." If they do not have enough points to cover the entire order, they will be able to pay the balance with a different payment type.