An image processing apparatus includes an image processing device and a controller configured to obtain data identification information, receive definition data identified by the data identification information, display a definition screen based on the received definition data, receive a designation operation, further obtain the data identification information defined in the screen definition data, control the image processing device to execute image processing defined in the operation definition data, when the obtained data identification information is first identification information for identifying first definition data stored in a first server, determine whether the first identification information coincides with the specific identification information, prior to receiving the definition data, and when the first identification information coincides with the specific identification information, receive second definition data identified by second identification information associated with the specific identification information from a second server.