Which charger do you have?

[myny-git]

Let’s inform all potential users of this integration for which setup it works. I’ll edit the list here on top.
myself, I own a Smappee EV Wall home - 3-phase, Single connector.

[joostnet]

Smappee EV One Business - 3-phase Single connector - Article code EVO-332-B-E-B

[ballydoon]

EV Wall Home Single Phase

[peterdedecker83]

I guess I have the same as the OP, Smappee EV Wall Home 3 phase with single connector, article code EVW-332-C8R-E-W