The Bridge works:
Has anyone managed to pair the Matter Bridge with Homey and thus transfer HA devices?
Translation:
The device to be added is not certified for Matter and cannot be added to Homey Pro.
I also ran into this issue a while ago when I was trying to implement a custom matter bridge. I reported this to Homey and their reply was basically “we are not sure yet if we are going to allow this”. I would suggest to open a support ticket yourself as well just so they see that there is demand for this feature.
EDIT: Full response I got back in April:
It is indeed not possible to add uncertified Matter devices. This is because the devices are not tested and we cannot be sure that this won’t have consequences.
Perhaps this feature will be available in the future, but I can’t make promises.
I hope this answers your question to your satisfaction, which is why I’m closing your ticket. If you need additional support, please feel free to re-open your ticket by answering this email.
I wish you a great day and a lot of fun with Homey!
Even Apple will allow uncertified devices (at least for HomeKit), it will just ask you if you’re sure or not.
Not sure why Athom feels the need to have such a holier-than-thou attitude, it certainly makes Homey less attractive for people that want to experiment with the latest-and-greatest.
Will Athom now become the “new” Apple ?
?
What if you commission it to Google Home first, and then to Homey?
That would be worth a try 
But can you then pair any of its devices with Homey over Matter?
Yeah, that’s what I feared 
I wrote to support, I hope in the future it will be possible to add not certified devices
Hi @makleso6
What version of M3 firmware are you using, I’ve been trying this for weeks with no success. I’m on 4.3.2_0024
same version
