I would like to send a message using a flow from the new homey to the old, where it will be used in a flow that is started by the message arriving on the old Homey.
The Homeys are in different locations, so the communication will have to take place over the internet.
Is this possible using built in functions, or do I need an app or do I need to submit a feature request to Athom?
I created 2 flows. Since i only have 1 homey i send and receive on the same homey. In your case the sender would be on the new homey and the receive on the old one.
As you can see you can even add an addtional argument/tag to the call, in this case “testtext”. On the receiving side you can use that of you want/need.