unfortunately I have to say (at least for the moment
Shelly Flood is not going homematic
The first insight I've already described in another german thread:
The Flood is offline even faster than the H & T. And thus too fast for a (reliable) online detection in Homematic.
The Cloud API is not an alternative, as the Flood is not yet integrated there.
I tried to find a way through the actions, but so far I have failed
Hope dies last.
I still hope for official support and I'm curious to see if anything can be realized there.
Keep your fingers crossed .