Trying to setup SmartThings for the first time, but requires webhook?

Hi all,

I am new to Home Assistant. So it seems integrating SmartThings to HA isn’t as easy as expected.

It requires to setup a webhook. I followed the document on HA site but it’s not really helpful.

Anyone know how to setup webhook for SmartThings? I don’t think I will subscribe to Nabu Casa.

Thanks
B