Receiving an Error when deleting an Azure Recovery Services Vault

Question

I have an old Azure Recovery Services vault for an on-premise Windows Desktop that I am trying to remove after decommissioning said desktop. Azure is responding with this error

Answer 1

I have not mapped this answer to the corresponding Azure commands, but I was able to find my way to a solution via the Azure Portal. The steps were as follows:

1. Selected my Recovery Service resource
2. Under the Manage section, clicked Backup Infrastructure
3. Under Management Servers, clicked Protected Servers
4. In the list that followed, clicked on the row where my Protected Server Count was greater than 0, in my case, Azure Backup Agent (because the backup agent was installed on my Windows Desktop)
5. Clicked on my server name in the Protected Server list
6. Clicked Delete in the card for my protected server

After that completed, I was able to delete the entire vault. These steps may be helpful if you have other Backup Infrastructure resources and possibly even Site Recovery Infrastructure resources associated with a vault.

Update: It seems like there's an open issue for Get-AzureRmRecoveryServicesBackupItem not having any capacity to return MARS backup items which is ultimately what the issue here was.