In a network print environment in which printers of various residual amount outputting methods exist mixedly, in an information processing apparatus for monitoring a supplement of consumables which are used in the printer which can communicate via a communication line in order to recognize that consumables have properly and newly been supplemented in each printer, there is provided a mechanism having a discriminating unit for discriminating whether the consumables have newly been supplemented into the printer or not by a discriminating method according to the residual amount outputting method of the consumables of the printer.