下单API报文问题！

如下是下单api的报文，里面缺失了很多字段，例如发票相关，支付方式相关的字段，请问是只传这些字段就是可以的吗？其余的关键信息怎么传？

{
  "order": {
    "checkoutProfileId": "",
    "customerPurchaseOrderNumber": "",
    "endCustomerCompanyName": "",
    "expediteShipping": false,
    "customerOrderComments": [
      {
        "message": ""
      }
    ],
    "lineItems": [
      {
        "customerLineItemNumber": 1,
        "tiPartNumber": "NE555DR",
        "customerPartNumber": "",
        "customReelIndicator": false,
        "quantity": 1,
        "customerItemComments": [
          {
            "message": ""
          }
        ]
      },
      {
        "customerLineItemNumber": 2,
        "tiPartNumber": "LM358PWR",
        "quantity": 1
      }
    ]
  }
}