The present disclosure is characterized by: transmitting a command executing a task to plural devices to be managed; and checking a status of a device in case where a task to be executed in the device is a predetermined task being likely to cause a system error in the device, wherein a command executing the predetermined task is transmitted to a first device determined to be in a state where the predetermined task is executable, among the plural devices, without transmission of a command causing the device to be in the state where the predetermined task is executable, and wherein the command executing the predetermined task is transmitted to a second device determined to be in a state where the predetermined task is not executable, among the plural devices, after transmission of the command causing the device to be in the state where the predetermined task is executable.