Systems and Methods to Implement Point of Sale (POS) Terminals, Process Orders and Manage Order Fulfillment

Systems and methods to integrate point of sale processing, online order processing, coupon management, WiFi access management, and supply chain and store management, etc. In one aspect, a central server provides point of sale, coupon management and other functions via browser based interfaces. The system provides a coupon to a customer to offer discounts to friends of the customer and/or rewards to the customer if the friends of the customer use the coupon. The system validates the coupon when the coupon is used at POS terminals of the system and tracks the usage of the coupons to select customers for targeting future coupons. In another aspect, the central server is configured to provide the customer with WiFi access at the retail location where the order of the customer is fulfilled and further configured to automatically log the customer into an account of the customer hosted on a third party server.