Abstract: In an example, a method can include receiving, at a merchant-facing portion of a payment system, data from a customer-facing portion of the payment system indicating a payment transaction between a merchant and a customer, wherein there is a physical connection between the portions; determining that the payment system is unable to access a remote payment service system via an external network; determining that the payment transaction is not preapproved for payment by the remote payment service system; storing the payment transaction on the merchant-facing portion even though the payment transaction is not preapproved; determining that the payment system is able to access the remote payment service system via the external network; and transmitting transaction information including the stored payment transaction to the remote payment service system, via the external network, for processing the stored payment transaction.

Abstract: Techniques associated with a customer-facing device and a merchant-facing device are described herein. In an example, a system can include a customer-facing device configured with a customer application that is executable on an operating system of the customer-facing device to (i) display information to a customer and (ii) receive input from the customer, wherein the customer-facing device includes a payment reader to read payment data from a payment instrument in association with a payment transaction between the customer and a merchant, and a merchant-facing device configured with a merchant application that is executable on an operating system of the merchant-facing device to (i) display information to the merchant and (ii) receive input from the merchant. In at least one example, the customer-facing device and the merchant-facing device can communicate to process, at least in part, the payment transaction associated with the payment instrument via a remote payment service system.

Abstract: Techniques associated with a customer-facing device and a merchant-facing device are described herein. In an example, a system can include a customer-facing device configured with a customer application that is executable on an operating system of the customer-facing device to (i) display information to a customer and (ii) receive input from the customer, wherein the customer-facing device includes a payment reader to read payment data from a payment instrument in association with a payment transaction between the customer and a merchant, and a merchant-facing device configured with a merchant application that is executable on an operating system of the merchant-facing device to (i) display information to the merchant and (ii) receive input from the merchant. In at least one example, the customer-facing device and the merchant-facing device can communicate to process, at least in part, the payment transaction associated with the payment instrument via a remote payment service system.

Abstract: Techniques associated with a customer-facing device and a merchant-facing device are described herein. In an example, a system can include a customer-facing device configured with a customer application that is executable on an operating system of the customer-facing device to (i) display information to a customer and (ii) receive input from the customer, wherein the customer-facing device includes a payment reader to read payment data from a payment instrument in association with a payment transaction between the customer and a merchant, and a merchant-facing device configured with a merchant application that is executable on an operating system of the merchant-facing device to (i) display information to the merchant and (ii) receive input from the merchant. In at least one example, the customer-facing device and the merchant-facing device can communicate to process, at least in part, the payment transaction associated with the payment instrument via a remote payment service system.

Abstract: Techniques associated with a customer-facing device and a merchant-facing device are described herein. In an example, a system can include a customer-facing device configured with a customer application that is executable on an operating system of the customer-facing device to (i) display information to a customer and (ii) receive input from the customer, wherein the customer-facing device includes a payment reader to read payment data from a payment instrument in association with a payment transaction between the customer and a merchant, and a merchant-facing device configured with a merchant application that is executable on an operating system of the merchant-facing device to (i) display information to the merchant and (ii) receive input from the merchant. In at least one example, the customer-facing device and the merchant-facing device can communicate to process, at least in part, the payment transaction associated with the payment instrument via a remote payment service system.

Abstract: Method, systems, and apparatus for a method of processing a payment transaction using a mobile device of a merchant. In one aspect, determining the mobile device does not have a connection to an external network; receiving data indicating a payment transaction between a customer and the merchant; determining whether the payment transaction should be stored, where the determining is based on a risk heuristic model that considers one or more of the following: a number of already stored transactions, a value of the payment transaction, a total value, where the total value is a sum of the value of the payment transaction and values of one or more already stored transactions, and risk factors associated with the customer; and based at least on the determination, storing the payment transaction on the mobile device for future processing.

Abstract: Method, systems, and apparatus for a method of processing a payment transaction using a mobile device of a merchant. In one aspect, determining the mobile device does not have a connection to an external network; receiving data indicating a payment transaction between a customer and the merchant; determining whether the payment transaction should be stored, where the determining is based on a risk heuristic model that considers one or more of the following: a number of already stored transactions, a value of the payment transaction, a total value, where the total value is a sum of the value of the payment transaction and values of one or more already stored transactions, and risk factors associated with the customer; and based at least on the determination, storing the payment transaction on the mobile device for future processing.