A non-transitory computer-readable storage medium storing a program executable by a computer of a device, the program, when executed by the computer, causing the device to perform: causing a reader of the device to read a code image; determining, based on code information indicated by the code image and identification information of a consumable item of a printer stored in a first memory, whether to register the identification information of the consumable item indicated by the code information; registering the identification information in a second memory in a case where the determining determines to register the identification information; and displaying, on a display of the device, unique information of a consumable item whose identification information is registered in the second memory in a display mode different from a display mode of unique information of a consumable item whose identification information is not registered in the second memory.