Mysensors - integrate mysensors.notify [Solved]

According to this page
I would like to install/integrate the mysensors notifications, in order to send messages from HA to my nodes.
I searched for the “notify.mysensors” service, as written in the example, but didn’t find it…
What do I have to do to be able to use it ?

Sorry, I can’t help here but there is a mysensors tag. Maybe, if you add this tag to the post, a developer would be able to see it easily and provide some help.

Thanks. Hoping it helps, because I’m about to return to Jeedom :frowning:

You would need the MySensors integration configured and connected to your gateway in order to see the notify.mysensors service. Example service data:
target: Livingroom FirePlace 4 1
message: ‘MyMessage’

Yes, that’s the reason why I posted :wink:.
And I have a USB gateway. I don’t know how to connect the gateway.
I precise that the way mysensors–>HA has no problem.

mysensors:
  [...]
  version: '2.3'

was the solution.
Thanks to bearwithbeard who helped me so much