ST, Google Home, and Yale Lock not working together

St and Google home for Yale sl1 lock. Can’t seem to get my Yale sl1 to show up in Google home. It’s supposed to be gh friendly. My door sensor does show up in gh. St can use and control the lock. St sees both the lock and sensor.

What’s the exact model number of the Yale lock?

model YRD256

Also to note… I mean the GH app on my phone.

Thoughts? I know Google Home won’t unlock it via voice for security reasons and IFTTT is the workaround.

Sorry, I’m not using Google Home, and I’m just not familiar with the details of the integration. Hopefully somebody else will chime in who is.