When an image processing apparatus starts execution of an image output job, the apparatus confirms whether or not to be able to access a server. In a case where the apparatus could not access the server, the apparatus stops the execution of the image output job. In a case where the apparatus could access the server and the image output job started as the first condition is satisfied, the apparatus saves a log relating to the image output job in the server and outputs image data. In a case where the apparatus could access the server and the image output job started as the second condition is satisfied, the apparatus starts generation of image data from a first page of a document, saves the log relating to the image output job in the server after generation of image data of all pages is completed, and outputs the generated image data.