A customer service managing method includes identifying a clerk to perform customer service from among a plurality of clerks based on a customer service request and clerk terminal information indicating states of a plurality of clerks, the states being related to customer service, when receiving the customer service request from a second terminal device; transmitting identifying information identifying the customer service request to a first terminal device corresponding to the identified clerk and the second terminal device; updating the clerk terminal information so as to indicate that the identified clerk is performing customer service when receiving reception start information from the first terminal device; updating the clerk terminal information so as to indicate that the state of the identified clerk is in an available state when receiving reception stop information from the first terminal device; and transmitting an end message to stop the beacon to the second terminal device.