An information processing system including a first image processing apparatus and a second image processing apparatus, wherein the image processing apparatuses are multifunction peripherals providing various functions related to image formation on a recording medium and configured to use setting information, the setting information being information that is stored for each user and that designates a plurality of conditions for executing each of a plurality of functions related to image processing, each of the plurality of functions being added or extended individually, the first image processing apparatus comprising a first apparatus communication unit, and the second image processing apparatus comprising a second apparatus communication unit and an update unit, wherein: the first apparatus communication unit is configured to transmit, in a case where a user finishes using a function from among the plurality of functions by operating a button on a UI screen that results in the switching to another screen, information including at least function identification information identifying the function and user identification information identifying the user to the second image processing apparatus, the function identification information identifying the function for which first setting information, which is the setting information stored in the first image processing apparatus, is used, and the user identification information identifying a user associated with the function identification information; the second apparatus communication unit is configured to make a request for the first setting information to the first image processing apparatus in a case where second setting information is stored in the second image processing apparatus, the second setting information corresponding to the user identification information and being setting information for the function that is identified by the function identification information; the first apparatus communication unit is further configured to transmit the first setting information to the second image processing apparatus in response to the request made by the second apparatus communication unit in the case where the second setting information is stored in the second image processing apparatus; and the update unit is configured to update the second setting information in accordance with the first setting information that has been transmitted from the first image processing apparatus. the first apparatus communication unit is configured to transmit, in a case where a user finishes using a function from among the plurality of functions by operating a button on a UI screen that results in the switching to another screen, information including at least function identification information identifying the function and user identification information identifying the user to the second image processing apparatus, the function identification information identifying the function for which first setting information, which is the setting information stored in the first image processing apparatus, is used, and the user identification information identifying a user associated with the function identification information; the second apparatus communication unit is configured to make a request for the first setting information to the first image processing apparatus in a case where second setting information is stored in the second image processing apparatus, the second setting information corresponding to the user identification information and being setting information for the function that is identified by the function identification information; the first apparatus communication unit is further configured to transmit the first setting information to the second image processing apparatus in response to the request made by the second apparatus communication unit in the case where the second setting information is stored in the second image processing apparatus; and the update unit is configured to update the second setting information in accordance with the first setting information that has been transmitted from the first image processing apparatus.