Abstract: A system and application for purchasing one or more items via quick online transactions from a vendor system is provided. An electronic shopping page listing products for sale and corresponding buy selectors is provided on a user device that includes the quick transaction system. Upon user selection of a buy selector, the user's log on status and payment information are determined, and, if necessary, the user is prompted to log on to the quick transaction application and/or complete any missing user payment information if necessary. A single click or tap on the buy selector generates a completed purchase transaction without the need for a shopping cart or user checkout process. Methods and machine-readable medium for quick online transactions are also provided.

Abstract: A system and application for completing an electronic purchase transaction directly from a seller's electronic marketing communication to a user are provided. An electronic marketing communication listing products for sale by the seller is provided on a user's device, including a buy selector associated with each listed product. Upon user selection of the buy selector when viewing the electronic marketing communication, an electronic purchase transaction of the selected product is immediately completed if it is determined that the user is logged in and the user's shipping and billing information are complete. A receipt of the purchase transaction is displayed, where unbuy, edit and continue shopping options are provided with the receipt. User interfaces prompt for completion of login or user information if necessary. Machine-readable medium for direct from communication buying are also provided.

Abstract: A system and application for modifying an electronic transaction with a seller after the transaction has been completed. An electronic receipt or confirmation listing the information associated with a recently completed electronic transaction is provided on a user's device, including a time display showing how much time remains to modify or cancel the completed transaction and an unbuy selector. Upon user selection of the unbuy selector during the displayed time window, the completed electronic transaction is immediately cancelled. Rebuy and continue shopping options are provided with the cancellation receipt. Product, shipping address, shipping method, payment method, gift and coupon options are also modifiable after an electronic order transaction is completed. Methods and machine-readable medium for post transaction order modification are also provided.