Shelly power strip zigbee direct binding

Hello,

I'm trying to directly bind a Sonoff SNZB-01P zigbee button to two outlets of a shelly power strip in HA using ZHA.

The group is created, the outlets are added to the group, the button is bound to the group OnOff input (I press the button to get it to wake up an complete the binding). But nothing happens. I can see the button presses in HA and I can control the shelly power strip via HA.

Is direct binding supported? Do I need to do anything on the shelly strip when setting up the zigbee group?

Thanks!

After some more searching, it appears that the fault is with the Sonoff button. The SNZB-01 supports direct binding while the SNZB-01P does not.