An image processing apparatus comprising, a detector unit configured to detect an event that a user logged in to the image processing apparatus logs out, an query unit configured to be operable when said detector unit detects the event, to query the user whether or not to change a setting of a job under execution, and a control unit configured to be operable when the setting of the job is to be changed as a result of the query made by said query unit, to change the setting of the job and then perform a logout, and, when the setting of the job is not to be changed as a result of the query made by said query unit, to restrict the logout.