I’m building a mobile app to show information of flight and alert user when information is updated. I use api v2 http://flightxml.flightaware.com/soap/FlightXML2/doc#op_SetAlert to set alert for a flight. After receiving notification, I will use api v3 https://flightaware.com/commercial/flightxml/v3/apiref.rvt#op_FlightInfoStatus to get information of flight again. The problem is api v2 do not send notification when actual_blockin_time is available. It do send notification when actual_arrival_time and stops after this. So what do I need to do to get notification when actual_arrival_time is available?