Is it allowed that two SmartApps communicate with each other? If yes, how can two SmartApps communicate with each other?

Developer Programs Writing SmartApps
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Hi guys, I wonder is it allowed that two SmartApps communicate with each other? If yes, how can two SmartApps communicate with each other? Does SmartThings provides any APIs/methods for that?
Thanks！

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While there are “hacks” the official way for 2 Things (Devices) to communicate is via a SmartApp.

As for 2 SmartApps communicating, what is your exact use case, please?

One short answer is that you could use a Device as an intermediary, since both SmartApps can subscribe to that Device and can issue Commands on that Device.

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Thanks for the information, tgauchat. I dont have any specific scenario. Just wondering :grinning:

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You can also create a Parent SmartApp that creates Child SmartApps. In this relationship, the parent and children can communicate directly. Child to Child communication requires the Parent as the intermediary.

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Good to know. Thanks :handshake:

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