State changes not triggering automations

Configuration
1

I am using an automation to detect the state change of the device tracker to activate something when i come / leave home. However the automation is not triggering, and i just can’t seem to find the problem.
Here is the code

trigger: 
  platform: state 
  entity_id: group.all_devices
action: 
  service: ifttt.trigger 
  data: 
    event: test

I have already tested different versions of this, with or without any conditions, or using “from”, “to” or “state” in the trigger. Is there something i need to do first? Or am i missing out on something else ?

2

You have not defined the state change. You need to add the below after your entity_id.

from: ‘not_home’
to: ‘home’

3

I have already tried this but it still doesn’t work.

4

Try the following:

trigger: 
  platform: state 
  entity_id: group.all_devices
action: 
  service: ifttt.trigger 
  data: {"event":"test"}

Also, it is not required to define a state (or a from state or a to state) in a trigger. If you don’t, the trigger will fire on every state change.

5

Sadly it still doesn’t seem to be working. I don’t think that there is any problem with the action, since this is exactly the same service that i use in another script. I have also tried using other services but they don’t seem to be working.

6

Are you sure all of your tracked devices are offline or outside of the house? The entity group.all_devices contains all of your tracked devices, and the state of that group will remain home as long as there is at least 1 device which has the home state. The state of the group will only change to not_home when all tracked devices have that state.

7

Yes I am sure, when i go into the UI and look in the states tab for this group, i can see it’s state change.

8

I have finally found the problem: I forgot a blank space in the group tab, which led Home Assistant to not properly load some of the components, including the automation component.