Abstract: A method for supporting the packing and delivery of products by a user, comprising: a step in which a Quick-response (QR) code on an order confirmation is scanned by the user; a step for providing packing precaution information and order detail information, including an ordered products list, on the basis of the QR code on the order confirmation; a step for displaying the packing precaution information in a first color when the packing precaution information is selected by the user; a step in which a specific product in the ordered product list is selected by the user when the packing of the specific product in the ordered product list has been completed; and a step for displaying the specific product in the first color when the specific product is selected.

Abstract: A method for assisting proximity sensor-based product picking, comprises: deriving a product to be currently picked from a picking product list; selecting a first user terminal positioned in a first region where the product to be currently picked is displayed; moving a cart including a plurality of picking boxes within a certain distance from the first user terminal; when the cart is positioned within the certain distance from the first user terminal, stopping movement of the cart; providing information about the product to be currently picked to the first user terminal; and when picking completion information is received from the first user terminal, deriving a product to be picked next from the picking product list, wherein a distance between the cart and the first user terminal is determined on the basis of a proximity sensor.

Abstract: A refund service providing method comprises: selecting, by a user terminal, at least one product to be refunded from among at least one ordered product; obtaining, from the user terminal, refund request information including image information regarding the product to be refunded, refund degree information, and refund comment information; obtaining, from a terminal in charge of refunds, refund determination information regarding the refund degree information, based on the image information and the comment information, wherein the refund determination information includes information indicating approval or rejection; obtaining, from a terminal in charge of refunds, refund determination information regarding the refund degree information, based on the image information and the comment information, wherein the refund determination information includes information indicating approval or rejection; and when the refund determination information includes the information indicating approval, providing, to the user ter