使用Postman网址进行测试是http://production.shippingapis.com/ShippingAPI.dll?API=TrackV2&XML=
请求
<TrackRequest USERID=”xxxxxxx”>
<TrackID ID="xxxx">
</TrackID>
</TrackRequest>
响应
<?xml version="1.0" encoding="UTF-8"?>
<Error>
<Number>80040B19</Number>
<Description>XML Syntax Error: Please check the XML request to see if it can be parsed.</Description>
<Source>USPSCOM::DoAuth</Source>
</Error>
什么是错误?