POST api/Po2GoInvoice/PostInvoice

{
  "poinvoice": {
    "invoice": {
      "details": {
        "currency": "sample string 1",
        "discount": "sample string 2",
        "discount_title": "sample string 3",
        "facility": "sample string 4",
        "invoiceorcredit": "sample string 5",
        "shipping": "sample string 6",
        "shipping_title": "sample string 7",
        "subtotal": "sample string 8",
        "tax": "sample string 9",
        "tax_title": "sample string 10",
        "total": "sample string 11"
      },
      "header": {
        "ext_invoice_id": "sample string 1",
        "ext_order_id": "sample string 2",
        "order_request_id": "sample string 3"
      },
      "items": [
        {
          "description": "sample string 1",
          "line_number": "sample string 2",
          "quantity": "sample string 3",
          "supplier_aux_id": "sample string 4",
          "supplier_id": "sample string 5",
          "unitprice": "sample string 6",
          "uom": "sample string 7"
        },
        {
          "description": "sample string 1",
          "line_number": "sample string 2",
          "quantity": "sample string 3",
          "supplier_aux_id": "sample string 4",
          "supplier_id": "sample string 5",
          "unitprice": "sample string 6",
          "uom": "sample string 7"
        }
      ]
    },
    "order_request_id": "sample string 1",
    "national_acct_id": "sample string 2"
  }
}

<RootObjectPOInvoice xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/WedgewoodAPI.Models">
  <poinvoice>
    <invoice>
      <details>
        <currency>sample string 1</currency>
        <discount>sample string 2</discount>
        <discount_title>sample string 3</discount_title>
        <facility>sample string 4</facility>
        <invoiceorcredit>sample string 5</invoiceorcredit>
        <shipping>sample string 6</shipping>
        <shipping_title>sample string 7</shipping_title>
        <subtotal>sample string 8</subtotal>
        <tax>sample string 9</tax>
        <tax_title>sample string 10</tax_title>
        <total>sample string 11</total>
      </details>
      <header>
        <ext_invoice_id>sample string 1</ext_invoice_id>
        <ext_order_id>sample string 2</ext_order_id>
        <order_request_id>sample string 3</order_request_id>
      </header>
      <items>
        <InvoiceItem>
          <description>sample string 1</description>
          <line_number>sample string 2</line_number>
          <quantity>sample string 3</quantity>
          <supplier_aux_id>sample string 4</supplier_aux_id>
          <supplier_id>sample string 5</supplier_id>
          <unitprice>sample string 6</unitprice>
          <uom>sample string 7</uom>
        </InvoiceItem>
        <InvoiceItem>
          <description>sample string 1</description>
          <line_number>sample string 2</line_number>
          <quantity>sample string 3</quantity>
          <supplier_aux_id>sample string 4</supplier_aux_id>
          <supplier_id>sample string 5</supplier_id>
          <unitprice>sample string 6</unitprice>
          <uom>sample string 7</uom>
        </InvoiceItem>
      </items>
    </invoice>
    <national_acct_id>sample string 2</national_acct_id>
    <order_request_id>sample string 1</order_request_id>
  </poinvoice>
</RootObjectPOInvoice>

Sample not available.