An image input-output apparatus capable of recording information enabling events of image data items output by output jobs to be tracked, while suppressing load on a network and a server. If an executed job is an output job, a job event of the output job is recorded in association with a job event of an input job in which image data used in the output job is input. If the job event is of an output job, the job event of the input job associated with the job event of the output job is transmitted to a server together with the job event of the output job, whereas if the job event is of an input job, and image data input by the input job is not used in any other job, the job event of the input job is not transmitted to the server.