On iOS devices you can set a Quiet Zone on the App.
This function detects the WIFI your phone is connected to, and if this is your chosen wifi (home or work) it will silence disconnection notifications while you are connected to that WiFi.
This helps avoid disconnection alerts if, for example, you normally leave your keys in your office desk while you go to a meeting.
On iOS devices you can also set a Quiet Time on the App. This silences the disconnection notifications during the time period you specify (for example at night, or during the working day).