MQTT: How to set UNDEF when invalid data returned from Zigbee2MQTT?

[rlkoshak (Rich Koshak)]

@idean

Are you saying that even when that Channel also has a different commandTopic defined, it’s still receiving it as a command even though it’s a state change?

No, but there is a flag to set that will treat incoming messages as a command to the linked Item instead of the usual update.

@idean

I’m not sure I understand your recommendation. Wouldn’t I have to also create multiple Items then to act on each other along with extra logic to set states and handle UNDEF properly?

Yes.

@idean

With 20+ vents, this won’t scale well.

See OH 3 Tips and Tricks, in particular the “Buying in Bulk” section.

There should only need to be one Rule to handle all the Items. Most of the rest is going to be copy/paste/edit.