MWS Finance API错误“没有数据处理程序”

Question

我正在尝试使用针对JavaScript / SAP UI5中第三方集成Web应用程序的动作ListFinancialEvents从finance api获取数据，请求字符串为

"https://mws.amazonservices.com/Finances/2015-05-01?AWSAccessKeyId=<AWSAccessKey>&Action=ListFinancialEvents&SellerId=<SellerId>&SignatureVersion=2&Timestamp=2017-07-20T09%3A16%3A05.251Z&Version=2015-05-01&Signature=Q6SmUbAmXWhFRQ%2BWqu2bxVFVh%2FtbMliH5Ligx6ELRbg%3D&SignatureMethod=HmacSHA256&PostedAfter=2017-07-1T09%3A16%3A04.241Z&PostedBefore=2017-07-19T09%3A16%3A04.242Z"

但是当完成后期操作时，它显示状态200，响应体为，

"{"Output":{"__type":"com.amazon.coral.service#UnknownOperationException","message":null},"Version":"1.0"}"

当我在登录控制台时，我收到以下错误，

"<?xml version="1.0"?>
<ErrorResponse xmlns="https://mws.amazonservices.com/">
  <Error>
    <Type>Sender</Type>
    <Code>InvalidAddress</Code>
    <Message>Resource /$metadata is not found on this server. API Version is missing</Message>
  </Error>
  <RequestID>a85b8571-3ed3-4860-a270-d4b47f3b5db2</RequestID>
</ErrorResponse>
"

我的查询是否有问题，我没有得到确切的问题。