Managing a soft-deleted apim resource
When a keyvault is deleted via azure portal it is actually only soft-deleted. The reason for this is to protect the user from deleting their secrets. After a keyvault is deleted you can either restore it or hard-delete it.
Further infos: https://docs.microsoft.com/en-us/azure/key-vault/general/key-vault-recovery?tabs=azure-portal
List the soft-deleted keyvaults
az keyvault list-deleted --subscription {SUBSCRIPTION ID} --resource-type vault
Recover a soft-deleted key-vault
az keyvault recover --subscription {SUBSCRIPTION ID} -n {VAULT NAME}
Purge a soft-deleted key-vault
az keyvault purge --subscription {SUBSCRIPTION ID} -n {VAULT NAME}