POST Vertex/CalculateInvoiceTax

{
  "Header": {
    "DOC_NO": 1,
    "ACCTNO": "sample string 2",
    "SUBC": "sample string 3",
    "DOC_DATE": "2026-04-03T08:46:29.1183585-04:00"
  },
  "Lines": [
    {
      "ULINE1": "sample string 1",
      "PARTNUMBER": "sample string 2",
      "QORDER": 1.0,
      "QTY_UM": "sample string 3",
      "UNITP": 1.0,
      "FREIGHT": 1.0,
      "WHCODE": "sample string 4",
      "LOCATION": "sample string 5"
    },
    {
      "ULINE1": "sample string 1",
      "PARTNUMBER": "sample string 2",
      "QORDER": 1.0,
      "QTY_UM": "sample string 3",
      "UNITP": 1.0,
      "FREIGHT": 1.0,
      "WHCODE": "sample string 4",
      "LOCATION": "sample string 5"
    }
  ],
  "ShippingAddress": {
    "ADR1": "sample string 1",
    "ADR2": "sample string 2",
    "ADR3": "sample string 3",
    "CITY": "sample string 4",
    "STATE": "sample string 5",
    "ZIP": "sample string 6",
    "COUNTRY": "sample string 7"
  }
}

<XS_VertexParams xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/XS.CoreApi.Pentagon.Model">
  <Header>
    <ACCTNO>sample string 2</ACCTNO>
    <DOC_DATE>2026-04-03T08:46:29.1183585-04:00</DOC_DATE>
    <DOC_NO>1</DOC_NO>
    <SUBC>sample string 3</SUBC>
  </Header>
  <Lines>
    <XS_VertexLine>
      <FREIGHT>1</FREIGHT>
      <LOCATION>sample string 5</LOCATION>
      <PARTNUMBER>sample string 2</PARTNUMBER>
      <QORDER>1</QORDER>
      <QTY_UM>sample string 3</QTY_UM>
      <ULINE1>sample string 1</ULINE1>
      <UNITP>1</UNITP>
      <WHCODE>sample string 4</WHCODE>
    </XS_VertexLine>
    <XS_VertexLine>
      <FREIGHT>1</FREIGHT>
      <LOCATION>sample string 5</LOCATION>
      <PARTNUMBER>sample string 2</PARTNUMBER>
      <QORDER>1</QORDER>
      <QTY_UM>sample string 3</QTY_UM>
      <ULINE1>sample string 1</ULINE1>
      <UNITP>1</UNITP>
      <WHCODE>sample string 4</WHCODE>
    </XS_VertexLine>
  </Lines>
  <ShippingAddress>
    <ADR1>sample string 1</ADR1>
    <ADR2>sample string 2</ADR2>
    <ADR3>sample string 3</ADR3>
    <CITY>sample string 4</CITY>
    <COUNTRY>sample string 7</COUNTRY>
    <STATE>sample string 5</STATE>
    <ZIP>sample string 6</ZIP>
  </ShippingAddress>
</XS_VertexParams>

Sample not available.