{
   "if": {
      "allOf": [
         {
            "field": "type",
            "equals": "Microsoft.Compute/virtualMachineScaleSets"
         },
         {
            "field": "Microsoft.Compute/VirtualMachineScaleSets/upgradePolicy.automaticOSUpgrade",
            "notEquals": "true"
         }
      ]
   },
   "then": {
      "effect": "audit"
   }
}