{
  "type": "object",
  "properties": {
    "department": {
      "type": "string",
      "enum": ["billing", "technical", "other"],
      "description": "Route charges, invoices and refunds to billing. Route broken product behavior to technical. Use other for anything else."
    },
    "duplicate": {
      "type": "boolean",
      "description": "True only when the message explicitly reports being charged more than once for the same purchase."
    }
  },
  "required": ["department", "duplicate"],
  "additionalProperties": false
}