Enabling Change Notifications

A synchronization group can enable or disable its change notifications.

By default, change notifications are disabled for synchronization groups. To enable change notifications, you must synchronize, then call the SynchronizationGroup object's setEnableSIS method.
id<SUPSynchronizationGroup> sg = [SUP101SUP101DB getSynchronizationGroup:@"PushEnabled"];
    if ([sg enableSIS]) {
        [sg setEnableSIS:YES];
        [sg setInterval:2];
        [sg save];
        [SUP101SUP101DB synchronize:@"PushEnabled"];
    }