Alarm notification with entity information

Hello, I have the following automation, and I am trying to set the notification to send to my phone . Which of the entities does it refer to? could you please help me ?

alias: Trigger alarm while away
description: ""
triggers:
  - entity_id: binary_sensor.bathroom
    to: "on"
    trigger: state
  - entity_id: binary_sensor.kitchen
    to: "on"
    trigger: state
  - entity_id: binary_sensor.central_door
    to: "on"
    trigger: state
conditions:
  - condition: state
    entity_id: alarm_control_panel.home_alarm
    state: armed_away
actions:
  - action: siren.turn_on
    metadata: {}
    data: {}
  - type: turn_on
    device_id: c8e48a8654724fec95916677
    entity_id: 60d84928940dce6529eac1d8
    domain: switch

Since you only have three triggers, the simplest way might be to give each trigger an ID, then have a choose action so that a different message is sent for each one.

Thanks for your quick response. So you mean
Is this look valid?

alias: Trigger alarm while away
description: ""
triggers:
  - id: bathroom_trigger
    entity_id: binary_sensor.bathroom
    to: "on"
    trigger: state
  - id: kitchen_trigger
    entity_id: binary_sensor.kitchen
    to: "on"
    trigger: state
  - id: door_trigger
    entity_id: binary_sensor.central_door
    to: "on"
    trigger: state
condition:
  - condition: state
    entity_id: alarm_control_panel.home_alarm
    state: armed_away
action:
  - service: siren.turn_on
    target:
      entity_id: siren.your_siren_entity
  - type: turn_on
    device_id: c8e48a8654724fec95916677
    entity_id: 60d84928940dce6529eac1d8
    domain: switch
  - choose:
      - conditions:
          - condition: trigger
            id: bathroom_trigger
        sequence:
          - service: notify.mobile_app_your_device
            data:
              message: "Motion detected in the bathroom!"
      - conditions:
          - condition: trigger
            id: kitchen_trigger
        sequence:
          - service: notify.mobile_app_your_device
            data:
              message: "Motion detected in the kitchen!"
      - conditions:
          - condition: trigger
            id: door_trigger
        sequence:
          - service: notify.mobile_app_your_device
            data:
              message: "Central door was opened!"

That’s the idea. Have you tried it?

Yes just tried it it woks like a harm thanks a lot