1. A disclosure range determination method executed by a computer coupled to a device and configured to determine whether a disclosure range of data designated by the device includes an error, the disclosure range determination method comprising: receiving data, information of a plurality of members which disclose the data, metadata of the data, and identification information of a user of a camera which is different from the device, the metadata including a position where the data was generated, a date and a time when the data was generated and a user identifier for identifying a user of the device, the data, the metadata and the identification information being transmitted from the camera; extracting a mail address corresponding to each of the plurality of members; generating, by a server device and based on action history of members, a first conversion rule related to the position, the date and the time, and a condition for disclosing the data for each of the plurality of members by receiving a schedule for each of the plurality of members from the device; storing the received schedule for each of the plurality of members; receiving, based on the stored schedule, a confirmation result of the schedule or action history different from the schedule; storing the action history for each of the plurality of members according to the confirmation result of the schedule or the action history different from the schedule; and generating the first conversion rule and the condition corresponding to each of the plurality of members; converting the metadata into the condition for each of the plurality of members using the first conversion rule; converting the condition for each of the plurality of members into a keyword using a second conversion rule related to the condition; and determining whether the keyword for each of the plurality of members is consistent with the condition corresponding to the identification information of the user of the camera.