| 摘要 |
An information managing system includes an information providing unit having the promotion information to deliver the promotion information, one terminal device included in a plurality of terminal devices, receiving the promotion information from the information providing unit; other terminal device included in the plurality of terminal devices, receiving at least the promotion information, additional information added by the one terminal device and an identifier indicating that at least the promotion information is transfer information from the one terminal device; and transaction unit for judging whether or not the identifier indicates the transfer information transferred from the one terminal device, if the identifier indicates that the transfer information exists, transmitting at least an information identifier indicating the promotion information and a client identifier indicating the one terminal device to the information providing unit, in accordance with a conclusion of a sales-object transaction performed through the other terminal device.
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