Server-based order persistence and/or fulfillment

A system comprising:

• one or more processors;
• and
• one or more non-transitory computer-readable media storing instructions executable by the one or more processors, wherein the instructions cause the one or more processors to perform acts comprising:
• receiving, by one or more servers of a payment processing service and from a point-of-sale (POS) device at a brick-and-mortar store of a merchant, duplicate data corresponding to data stored at the POS device, wherein the data is associated with an order placed at the POS device and associated with at least a first item and a second item, wherein the order is in a first state;
• storing, by the one or more servers of the payment processing service, the duplicate data, in association with a first status corresponding to the first state, order in a storage data structure of the one or more servers;
• receiving, by the one or more servers of the payment processing service, and from the POS device, an indication of loss of at least a portion of the data associated with the order, wherein the loss is associated with at least one of a power failure, a network outage, an unexpected shut-off of the POS device, or a navigation by the POS device away from a user interface displaying the order;
• and
• responsive to receiving the indication of the loss, transmitting, by the one or more servers of the payment processing service, at least a portion of the duplicate data to the POS device.

One or more non-transitory computer-readable media storing instructions executable by one or more processors that, when executed by the one or more processors, cause the one or more processors to perform acts comprising:

• receiving, by one or more servers of a payment processing service and from a point-of-sale (POS) device at a brick-and-mortar store of a merchant, duplicate data corresponding to data stored at the POS device, wherein the data is associated with an order placed at the POS device and associated with at least a first item and a second item, wherein the order is in a first state;
• storing, by the one or more servers of the payment processing service, the duplicate data, in association with a first status corresponding to the first state, in a storage data structure of the one or more servers;
• receiving, by the one or more servers of the payment processing service, and from the POS device, an indication of loss of at least a portion of the data associated with the order, wherein the loss is associated with at least one of a power failure, a network outage, an unexpected shut-off of the POS device, or a navigation by the POS device away from a user interface displaying the order;
• and
• responsive to receiving the indication of the loss, transmitting, by the one or more servers of the payment processing service, at least a portion of the duplicate data to the POS device.