1. A management apparatus comprising: a storing unit configured to store, when generating a task in which an object, a network device to which the object is to be transmitted, and an execution time of the task are set, information about the object to be processed in the task, on a database service; a transmission unit configured to transmit, at an execution time set in a first task for which a detection of a change in information about an object is not required, the object to be processed in the first task by executing the first task to the network device set in the first task; a detection unit configured to detect, at an execution time set in a second task different from the first task, whether information about an object to be processed in the second task is changed from the information about the object stored in the storing unit when the second task is generated, according to a setting of the second task or the object to be processed in the second task; and a cancelling unit configured to cancel, when the detection unit detects that there is a change in the information about the object, execution of the second task, wherein the transmission unit is configured to transmit, when the detection unit detects that there is no change in the information about the object, the object to be processed in the second task by executing the task, to the network device set in the second task.