By default, our Clover integration forces all customers to pay online. If you'd like to allow customers to pay upon pickup our team can enable this setting. You can also allow customers to pay at pick up but only if an order is under a certain amount, for example, if an order is under $20 allow the guest to pay at pickup. If it's over $20 force the guest to pay online. You can specify this amount and file a request to enable these settings on our account here.