Kliniken FRG

Hello, i got a problem with note-notification. There is one Master-Account and some added android-devices. All devices are logged in with the same (master)account. If one device send a new notice, i want a loud notification on the other devices. But there is no notification. Besides i think there is a problem with the synchronization. I set in automatic sync after 15 minutes. It seems that it doesn't work. Does anyone have an idea what i'm doing wrong or what i should try? i think i set the options right..but it doesn't work the way I want it to..:-( Thanks!