Abstract: A user device may receive a request for content; provide the request to a first server; receive an instruction based on providing the request for content; and provide a message to a second server based on receiving the instruction. The message may cause the second server to embed a unique identifier (ID) of the user device in the message to form a modified message for transmission to a third server. The modified message may cause the third server to form an object having the unique ID. The user device may receive the object based on providing the message to the second server; provide the object to the first server or to a fourth server; and receive, from the first server or the fourth server, particular content based on providing the object to the first server or the fourth server. The particular content may be based on the unique ID.

Abstract: A device may determine that a user device has detected an event that triggers the user device to execute a mobile checkout application associated with a retail store. The device may provide, to the user device, information that identifies a promotion associated with an item at the retail store. The device may receive, from the user device, item information that identifies the item. The device may provide, to the user device, checkout information associated with purchasing the item. The checkout information may be based on the item information and the promotion. The device may store the checkout information associated with the retail store. The device may store an association between the checkout information and other checkout information associated with the user device and another retail store.

Abstract: A user device may receive a request for content; provide the request to a first server; receive an instruction based on providing the request for content; and provide a message to a second server based on receiving the instruction. The message may cause the second server to embed a unique identifier (ID) of the user device in the message to form a modified message for transmission to a third server. The modified message may cause the third server to form an object having the unique ID. The user device may receive the object based on providing the message to the second server; provide the object to the first server or to a fourth server; and receive, from the first server or the fourth server, particular content based on providing the object to the first server or the fourth server. The particular content may be based on the unique ID.