{
  "_comment": "【重要】推送数据不做字段映射，外部系统需直接使用平台标准字段名和枚举值",
  "action": "modify",
  "action_desc": "modify(修改/新增) | delete(删除) | use(使用) | return(退回)",
  "items": [
    {
      "outer_id": "CI001",
      "template_outer_id": "COUPON001",
      "user_outer_id": "USER001",
      "coupon_type": "full_reduction",
      "status": "unused",
      "receive_time": "2024-03-01T10:00:00",
      "expire_time": "2024-04-01T23:59:59",
      "use_time": null,
      "use_order_id": null,
      "refund_time": null,
      "refund_order_id": null
    }
  ],
  "field_enums": {
    "coupon_type": "full_reduction(满减券(满X减Y)), percentage_discount(折扣券(X折)), no_threshold(无门槛券(立减Y)), tiered(阶梯券(每满X减Y))",
    "status": "unused(未使用), used(已使用), expired(已过期), refunded(已退回)"
  }
}