Sending and clearing a notification to a group of Android devices

Mobile Apps Home Assistant Companion for Android
1

I have a notification group setup of the two Home Assistant companion app using Android devices:

notify:
  - platform: group
    name: Family
    services:
      - service: mobile_app_galaxy_a32
      - service: mobile_app_pixel_3a

I would like to send an actionable notification to that group whenever the front gate is detected to be open, with the option to close it. When the front gate is detected to be closed, that notification should vanish from all devices.

- alias: Notify if gate open
  id: 'notify_if_gate_open'
  trigger:
  - id: 'gate_opened'
    platform: state
    entity_id: cover.gate
    to: 'open'
  - id: 'gate_closed'
    platform: state
    entity_id: cover.gate
    to: 'closed'
  mode: restart
  max_exceeded: silent

  action:
  - choose:
    - conditions:
      - condition: trigger
        id: 'gate_opened'
      sequence:
      - service: notify.family
        data:
          title: 'Gate'
          message: 'Gate is open'
          data:
            notification_icon: 'mdi:gate-open'
            channel: garage
            tag: gate-open
            actions:
              - action: CLOSE_GATE
                title: 'Close Gate'
      #Wait for feedback from the actionable notification
      - wait_for_trigger:
          platform: event
          event_type: mobile_app_notification_action
          event_data:
            action: CLOSE_GATE
        #timeout: "00:30:00"
        #continue_on_timeout: false
      #Continue only if the gate is currently open
      - condition: state
        entity_id: cover.gate
        state: 'open' 
      #Close the gate
      - service: cover.close_cover
        entity_id: cover.gate
    default:
    - service: notify.family
      data:
        title: 'Gate'
        message: 'clear_notification'
        data:
          channel: garage
          tag: gate-open

However the notification is not send reliably to all devices, nor is it automatically removed.

2

make sure to use the critical notification format to speed up delivery of the notification

you can also look at the notification history from the app to see whats being received. Settings > Companion App > Notification History