When receiving a cancel request of a job from a user, a determination is made on whether or not the job as a target for the received cancel request is a virtual job to be processed by cooperating functions of a plurality of image processing apparatus. When it is determined that the job as a target for the cancel request is a virtual job, information regarding the plurality of image processing apparatuses which cooperates to execute the virtual job and an order in which the cancel instruction for the virtual job is to be transmitted to the plurality of image processing apparatuses are acquired, and based on the acquired order, a cancel instruction for the virtual job is transmitted to any of the plurality of image processing apparatuses.