I was trying to schedule a backup for a vm(hyper-v) using wbadmin command as below -
wbadmin enable backup -addTarget:d:\backup_new -hyperv:<vm_name> -quiet
But I am getting the below error saying that -hyperv is an unexpected option but as per the documentation wbadmin does support it when we want to schedule a backup.
Link to documentation.

Do help me if anyone knows or have used this before.