Some flights did not receive alerts

FlightAware AeroAPI
1

I was watching some flights that were on AirlineFlightSchedules (AeroAPI/FlightXML 2). These flights were scheduled to depart on March 12, but I didn’t receive any updates on them. And looking at FlightInfoEx they are canceled ( actualdeparturetime , estimatedarrivaltime and actualarrivaltime with value of -1).

GLO1370-1615338480-schedule-0295
GLO1440-1615421209-airline-0639
TAM3414-1615340400-schedule-0312
TAM3422-1615349700-schedule-0069
TAM3445-1615368300-schedule-0024
TAM4780-1615369980-schedule-0004
TAM4783-1615370100-schedule-0004
TAM3356-1615372020-schedule-0012
TAM3256-1615375800-schedule-0158
TAM3211-1615520204-airline-0131
TAM3368-1615388880-schedule-0420
TAM3260-1615391700-schedule-0371
GLO1242-1615393500-schedule-0410
GLO1728-1615394400-schedule-0459

These flights are until March 12th.

I was looking at today’s flights and I found these flights that were canceled and I didn’t receive any alerts.

TAM3241-1615729860-schedule-0145
TAM3388-1615733640-schedule-0190
TAM3648-1615742940-schedule-0204

And the flight GLO4342-1615858667-airline-0138 was delayed in 6 hours and 45 minutes and we didn’t receive any alert.

I have set to receive any alert type of flights departing at SBGR/GRU:

{
  "alert_id": ***,
  "enabled": true,
  "description": "Any flight From GRU / SBGR",
  "type": "General_Aviation",
  "ident": "",
  "user_ident": "",
  "aircrafttype": "",
  "origin": "SBGR",
  "destination": "",
  "date_start": 0,
  "date_end": 0,
  "channels": [
      {
          "channel_id": 16,
          "channel_name": "FlightXML push",
          "mask_summary": "meetingFlight",
          "e_filed": true,
          "e_departure": true,
          "e_arrival": true,
          "e_diverted": true,
          "e_cancelled": true,
          "target_address": "******"
      }
  ]
}

Could you help me understand why I didn’t receive these alerts?

2

It is likely that they were “cancelled” due to no data being received for up to a couple hours after the filed departure time and not with an explicit cancel message from the airline.

If there is an explicit cancel message from the airline, we would then trigger the alert.