When The present invention receives a virtual marketing service request from a user terminal, the user needs a virtual marketing services and identified the identification information, a plurality of set allocated to receive a virtual account that without using the mapping from the virtual account to the user identification information, the order for the sale condition that satisfies the condition value using the allocated virtual account and then, when the fastening is made to the order, and return the received virtual account assigned to the fastening of the mapped information according to the user identification information in a virtual trading service method for notification to the user terminal. Also, the present invention receives the service request signal from the user terminal sale After authenticating the user receives the sign-on information from the user terminal, if the service is a virtual trade sale service requested by the user of the present invention include the virtual trading server by performing a virtual marketing service method provides a virtual trading services, marketing services, if the actual sale service requested by the user, the transmission order is the automatic trading server through the stock exchange to the actual account and accept the result to the user terminal relates to a method for supporting virtual marketing and sale of user authentication automatically once you informed.
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