You will have to set two triggers - one for “bob” & one for “alice”. and two zone events per device tracker.
automation:
trigger:
- platform: zone
entity_id: device_tracker.bob
zone: zone.kwik_e_mart
# Event is either enter or leave
event: enter # or "leave"
- platform: zone
entity_id: device_tracker.bob
zone: zone.slurm_r_us
# Event is either enter or leave
event: enter # or "leave"
- platform: zone
entity_id: device_tracker.alice
zone: zone.kwik_e_mart
# Event is either enter or leave
event: enter # or "leave"
- platform: zone
entity_id: device_tracker.alice
zone: zone.slurm_r_us
# Event is either enter or leave
event: enter # or "leave"
There might be a more compact way but I don’t ever use device tracker groups so this is the way I would do it and it should work even if it is a bit long.
I know I can create triggers when a specific device tracker enters a specific zone. Would be nice to trigger any person in group enters any zone in group and notify the rest Hay, Alice is at Kwik-E-Mart, need anything?
Sorry, I don’t know of a way to do that with groups since the device tracker group only shows home & away based on the status of both people in the group. if one person is not home the group is away if both are home the group is home.
I don’t know what the status of the group is if both are in the same zone (other than home) but that would defeat the purpose of your use case even if they did.
The zone trigger can accept a list of entity_id's, so one zone trigger can make the automation fire when any of the entities enters a zone. So you’d need one trigger per zone.
The state trigger can also accept of list of entity_id's, but it can also accept a list of to values as well. And when person entities enter a zone (as far as I know, because I don’t use them) their state changes to the friendly name of that zone. So one state trigger could do it all. Unfortunately, I don’t believe you could use the groups; you’d have to directly specify the entities and zone friendly names. So something like this:
trigger:
platform: state
entity_id:
- person.bob
- person.alice
to:
- Kwik e Mart
- Slurm R Us
Of course I just guessed what the zone friendly names are. Change them to what you have them configured as.
The nice thing about this is that in the action you can use trigger.to_state.name and trigger.to_state.state for the name of the person that triggered the automation and the name of the zone they entered, respectively.
I haven’t exactly tried this, so let me know how it works for you and if you need any help (if you decide to try it.)
This looks like a great solution, but I’d love to have a zone reference in the trigger to: field, in the automation snippet above, if the name of the zone ICA Maxi Trelleborg changes to something else, the automation stops working. Is there a nice way to fix that?