A management server receives selection of a setting item to be a monitoring target from setting information that can be set for a device, extracts, as monitoring data, setting information corresponding to the selected setting item, generates a monitoring task in which a device to be a monitoring target using the monitoring data, a monitoring setting, and a monitoring schedule are set, and saves the monitoring data corresponding to the monitoring task. Meanwhile, when the setting of a device is monitored using a security policy, not monitoring data but a policy version corresponding to setting information for use in monitoring is selected to generate a monitoring task.