It sounds to me like you are talking about a V2 smartplug. I am not aware of any Z-wave outlet branded under Iris. If it’s a Z-wave smartplug then the problem is you need to pair the Zigbee part first. The z-wave portion is only used as a repeater and will not show up in any automations.
There were some issues with pairing the Zigbee side. Here is a thread that deals with that.