A computer-implemented method is disclosed. The method includes receiving a first indication that a first replaceable component of a print apparatus has been replaced; receiving, prior to any print impressions being made using the print apparatus since receiving the first indication, a second indication of an intention to replace a second replaceable component of the print apparatus; retrieving data regarding previous replacements of replaceable components of the print apparatus; determining, based on the retrieved data, whether or not replacement of the second replaceable component is to be restricted; and responsive to determining that replacement of the second replaceable component is to be restricted, restricting replacement of the second replaceable component. An apparatus and a machine-readable medium are also disclosed.