Abstract: There is provided an information processing method performed by one or more processors of a first information processing device that executes predetermined settlement processing corresponding to a predetermined settlement service.

Abstract: An information processing method is executed by an information processing apparatus, and the information processing method includes listing, on a trading service, a first product designated by a first user, and upon receiving from a terminal of the first user an offer to barter the first product in exchange for a second product listed on the trading service by a second user, transmitting information indicating a shipment destination of the first product to the terminal of the first user, and transmitting information indicating a shipment destination of the second product to a terminal of the second user.

Abstract: An information processing method executed by an information processing apparatus, includes recording a first user in association with a first information processing terminal used by the first user; and restricting use of a service using the first information processing terminal by the first user and a second user, in response to detecting an illegal operation performed by the first user.

Abstract: There is provided an information processing method performed by one or more processors of a first information processing device that executes predetermined settlement processing corresponding to a predetermined settlement service.

Abstract: There is provided an information processing method and the like capable of using an electronic commerce platform by work that is simpler than before. When finding a desired commodity at a member shop, a user performs smartphone settlement using a user terminal 120 to purchase the commodity. A settlement terminal 130 generates purchase information, being triggered by the smartphone settlement and transmits it to a mediation server 110. When receiving, from the user terminal 120, a notification to the effect that a user wants to list the commodity purchased at the member shop on an electronic commerce platform (application for sale), the mediation server 110 automatically generates listed commodity information based on the purchase information and transmits it to the user terminal 120.

Abstract: An information processing method and like that enable removal of botheration a user has in a deposit/withdrawal operation and thereby enable a smooth buy/sell transaction of a transaction subject by the user are provided. The information processing method according to the present disclosure comprising: associating a user and a first account for the user to sell/buy a transaction subject; managing a sell/buy order of the transaction subject and a deposit in the first account; generating a buy order of the transaction subject based on an instruction from the user; and if a balance of the deposit has insufficiency for a price of the buy order, transferring a fund that is equal to or exceeds the balance insufficiency, from one or more second accounts that are different from the first account and associated with the user to the first account, based on an approval from the user.

Abstract: Provided is a technique that makes it possible to collectively perform use of a coupon and settlement by a one-dimensional code or a two-dimensional code. There is provided an information processing method for receiving, from a first information processing device, a request for a one-time code for performing payment applied with a coupon, issuing, in response to the request, a first one-time code for performing the payment applied with the coupon, transmitting the issued first one-time code to the first information processing device, receiving a second one-time code and a payment amount from a third information processing device used by a user who receives payment from the user, and, when the received second one-time code is the same as the first one-time code, acquiring, from a database that manages privileges for each coupon, a privilege concerning the coupon used for the payment and settling, as a payment amount paid by the user, an amount calculated based on the acquired privilege and the payment amount.