Samsung Room A/C

Hello,

I want to control my two Samsung Room A/C with Smartthings.

Both work within the Smarthome app, but of course I want to use automatization functions like setting an allowed temperature range for the A/Cs so Airbnb renters can’t dial insane and (for me) expensive temperatures.

I did the connection via Smartthings Marketplace as described in
https://support.smartthings.com/hc/en-us/articles/207849103-Samsung-Room-Air-Conditioner
The room A/Cs were found and connected but don’t appear in the device list.

Any ideas?