I have 2 hubs in 2 different locations. I would like to have an event in 1 location trigger a light or siren in the 2nd location. I have both hubs and locations showing on my app, but I haven’t seen any way to have a water leak in 1 location trigger a switch in the 2nd location.
Is this possible? How?
Thanks.
It’s not possible directly. Each location can only manage its own devices.
It is possible using IFTTT as a middleman. Have the first location send a text with a hashtag to IFTTT, and have that trigger something happening at the second location.
Thanks. It looks like even and non-coder like me can learn to use IFTTT.
IFTTT is intentionally kept very simple. But powerful.
You will create a recipe so
IF SMS (text received at your IFTTT number)
THEN SmartThings (choose the device you want)
There can be a delay of up to about 15 minutes, but it’s usually faster than that for an incoming text. The only one I found it’s really slow is processing an incoming email. The typical IFTTT delay at my house is eight seconds. But it does vary.
This is a good IFTTT tutorial:
I find it easier to just set it up to send a text to my phone from the second location. You should give the number that texts come from Smartthings a different ringtone. This is what I do to let me know something is going on at my second location.
This post is over 6 years old. Is IFTTT still the only method of triggering, for example, a siren at a different location?
These days a lot of people use a different third party app, SharpTools, to handle multiple locations. It has both a dashboard and a rules engine.
I’m not sure of all the details, but it’s probably worth a look. They have a free tier and a $30/year pro tier. I’m not sure if you need pro for the multi location features, but they have a free trial so you can check it out. They also have their own forum for detailed questions.
I Haven’t been able to keep up with the details of the new ST architecture due to be released in a month or so. Hopefully someone who’s been in the beta program and knows more will chime in if there are new native options coming. 
You can use multiple locations with SharpTools.io on the free tier and have an event in one location trigger an action in another using the Rule Engine.
Thank you @JDRoberts and @joshua_lyon. I got it working with SharpTools. I look forward to hearing from someone who’s been using the beta whether the upcoming ST supports this feature.
That cross-location feature works fine on the SharpTools beta. If you recently signed up for SharpTools, I believe you are on the next gen platform already. If you do have to migrate, everything is linked to the same back-end database, so the migration is trivial.
I believe the OP was referring to my previous message and wondering whether anyone in the smartthings Beta (not the SharpTools beta) can say one way or another whether native smartthings features can handle cross-location rules in the new architecture.
I can’t see ST supporting cross-Location automation natively. It just doesn’t fit in with their model and the community and third parties are a better fit for the job anyway.
The Samsung Automation Studio is one of the options worth considering.