The present invention in its first aspect provides a device management apparatus, which manages a virtual device that implements a cooperative function upon cooperating a plurality of physical devices connected via a network, comprising an acquisition unit adapted to acquire statuses from the physical devices that implement the cooperative function of the virtual device; and a display unit adapted to display whether or not the virtual device is usable, based on the statuses of the physical devices that implement the cooperative function of the virtual device acquired by the acquisition unit.