| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that there exists such various obstacles that when a plurality of senders cooperatively send a gift via an electric communication line, the labor of planning is heavy for a planner, and that since it is necessary for participants to determine their intention of participation in a state that the number of participants is uncertain, there exists uncertain elements.SOLUTION: When a planner draws up a plan for sending a gift, a user who has a predetermined relationship on a social networking service (SNS) is notified of the information with a message or feed via an SNS server 10. When a participation candidate who has been notified of the information participates, the information is fed to at least the other users who have a predetermined relationship with the participant, furthermore encouraging them to participate in the plan. |
