A device management apparatus is configured by execution of one or more programs to (i) acquire, from an external apparatus, a status-change information record for a status change that has occurred in a status-changed device, and (ii) determine whether or not the acquired status-change information record is a status-change information record for a managed device managed by the device management apparatus. If it is determined that the acquired status-change information record is a status-change information record for a managed device managed by the device management apparatus, the device management apparatus (iii) transmits an instruction to such managed device to perform a response action to display a message, based on the status-change information record, or if it is determined that the acquired status-change information record is not a status-change information record for any of the managed devices managed by the device management apparatus, the device management apparatus transmits information based on the acquired status-change information record to another device management apparatus managing another device which is not one of the managed devices managed by the device management apparatus.