Paypal 多重交易

如何在Paypal中进行多笔交易

我尝试使用以下JSON请求

{
  "intent": "sale",
  "payer": {
    "payment_method": "credit_card",
    "funding_instruments": [
      {
        "credit_card": {
          "number": "5500005555555559",
          "type": "mastercard",
          "expire_month": 12,
          "expire_year": 2018,
          "cvv2": 111,
          "first_name": "Joe",
          "last_name": "Shopper"
        }
      }
    ]
  },
  "transactions": [
    {
      "amount": {
        "total": "7.47",
        "currency": "USD"
      },
      "description": "This is the payment transaction description."
    },{
      "amount": {
        "total": "9.71",
        "currency": "USD"
      },
      "description": "This is the payment transaction description 2."
    }
  ]
}

但它给出了以下回应

{ “名称”：“验证错误”， “详情”：[ { “字段”：“事务”， “问题”：“当前仅支持单个付款交易” } ], “消息”：“无效请求-请参阅详细信息”， “信息链接”：“， “调试id”：“b18a0e6fdfe1d” }