A setting information management method comprises: receiving a command related to setting information stored in a storage from a network, changing the setting information based on the command, changing the setting information based on an input from a user using a setting screen displayed by a display unit when the change of the setting information based on the command is invalid, and displaying, by using the display unit, the setting screen in a mode that the user is unable to change the setting information displayed on the setting screen when a change of the setting information based on the command is valid.