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as-integy's avatar
as-integy
Copper Contributor
Dec 19, 2023

Azure Policy - Configure backup on virtual machines with a given tag

I wonder if somebody could sanity check something for me with this please in case it's something I could be missing.   We have this existing policy configured in a customers tenant (https://www.aza...
azure
azure backup
azure policy
Kidd_Ip's avatar
Kidd_Ip
MVP
Oct 23, 2025

The built-in Azure Policy “Configure backup on virtual machines with a given tag to an existing recovery services vault” (ID: 345fa903-145c-4fe1-8bcd-93ec2adccde8) uses a DeployIfNotExists effect and matches VMs based on:

  • Tag name and value
  • Region
  • Image Publisher, Offer, and SKU

In your case, the VM uses the SKU:
2019-datacenter-smalldisk-g2,
which is not listed in the policy’s SKU array, even though similar SKUs like 2019-Datacenter-smalldisk and 2019-datacenter-gensecond are included.

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