{
  "id": "free-shipping",
  "description": "Free shipping for gold/vip members, OR for orders of at least $75 that are not oversized. Shows AND / OR / NOT nesting to any depth.",
  "condition": {
    "type": "group",
    "operator": "OR",
    "rules": [
      { "field": "Customer.Tier", "operator": "In", "value": ["gold", "vip"] },
      {
        "type": "group",
        "operator": "AND",
        "rules": [
          { "field": "Order.Total", "operator": "GreaterThanOrEqual", "value": 75 },
          {
            "type": "group",
            "operator": "NOT",
            "rules": [
              { "field": "Order.Weight", "operator": "GreaterThan", "value": 20 }
            ]
          }
        ]
      }
    ]
  },
  "actions": [
    { "type": "setOutput", "target": "Shipping", "value": 0 },
    { "type": "setOutput", "target": "ShippingReason", "value": "free-shipping-qualified" }
  ]
}