Thanks for the feedback, we are working on enabling ASG references across subscriptions/VNets, it’s currently on our plans
An error occurred while saving the commentTim Yandell commented
I agree with James' comment. We would be happy to deallocate the VM to allow it to be moved to the proper update/fault domain. You could just tag the VM with the proper domain and pop up a message that the VM needs to be deallocated and reallocated (or redeployed) to join the availability set properly.