I am trying to add a new Zigbee Device handler for my zigbee device (A Zigbee Smartplug from my company).
I can see the device working properly in Smartthings Classic Mobile Apps. ( I can control and see the status of my Smartplug)
However, in Smartthings Mobile Apps, it just show “Checking Status” and I cannot check / control by device.
What is the possible issue in my device handler that should I look into.
Thanks in advance.