<PixiSupplierOrderCreatePost200TextXmlResponse>
  <SupplierOrderId>0</SupplierOrderId>
  <InternalNumber>0</InternalNumber>
</PixiSupplierOrderCreatePost200TextXmlResponse>

<PixiSupplierOrderCreatePost200TextXmlResponse>
  <SupplierOrderId>0</SupplierOrderId>
  <InternalNumber>0</InternalNumber>
</PixiSupplierOrderCreatePost200TextXmlResponse>

<PixiSupplierOrderCreatePost400TextXmlResponse>
  <ReturnCode>string</ReturnCode>
  <ErrorMessage>string</ErrorMessage>
</PixiSupplierOrderCreatePost400TextXmlResponse>

POST https://apigateway.descartes.com/tms/pixi/
Content-Type: text/xml; charset=utf-8
# echo -n '{{username}}:{{password}}' | base64 | pbcopy
Authorization: Basic {{token}}

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
                   xmlns:ns1="https://apigateway.descartes.com/tms/pixi/"
                   xmlns:xsd="http://www.w3.org/2001/XMLSchema"
                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                   SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
    <SOAP-ENV:Body>
        <ns1:pixiSupplierOrderCreate>
            <Type xsi:type="xsd:integer">1 or 2</Type>
            <UserId xsi:type="xsd:integer">123</UserId>
            <AppName xsi:type="xsd:string">Application name</AppName> <!-- required -->
            <UserName xsi:type="xsd:string">API user</UserName> <!-- required -->
            <SupplierId xsi:type="xsd:integer">123</SupplierId>
            <SupplierNr xsi:type="xsd:string">MGS</SupplierNr>
            <ExternalCode xsi:type="xsd:string">abcd</ExternalCode>
            <OrderLocation xsi:type="xsd:string">001</OrderLocation>
            <OrderLocationId xsi:type="xsd:integer">123</OrderLocationId>
            <DeliveryLocation xsi:type="xsd:string">001</DeliveryLocation>
            <DeliveryLocationId xsi:type="xsd:integer">123</DeliveryLocationId>
            <ShowDetailedReturn xsi:type="xsd:boolean">0 or 1</ShowDetailedReturn>
            <SupplOrderDocument xsi:type="xsd:string">check additional information</SupplOrderDocument> <!-- required -->
            <ConsiderMinOrderQty xsi:type="xsd:boolean">0 or 1</ConsiderMinOrderQty>
            <ConsiderPackageUnits xsi:type="xsd:boolean">0 or 1</ConsiderPackageUnits>
            <EstimatedDeliveryDate xsi:type="xsd:string">date format: YYYYMMDD hh:mm:ss[.mmm]</EstimatedDeliveryDate>
            <OrderConsiderationStartDate xsi:type="xsd:string">date format: YYYYMMDD hh:mm:ss[.mmm]</OrderConsiderationStartDate>
        </ns1:pixiSupplierOrderCreate>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

<?php

getPixiSoapClientResponse('pixiSupplierOrderCreate', [
    'Type' => '1 or 2', // integer
    'UserId' => '123', // integer
    'AppName' => 'Application name', // string (required)
    'UserName' => 'API user', // string (required)
    'SupplierId' => '123', // integer
    'SupplierNr' => 'MGS', // string
    'ExternalCode' => 'abcd', // string
    'OrderLocation' => '001', // string
    'OrderLocationId' => '123', // integer
    'DeliveryLocation' => '001', // string
    'DeliveryLocationId' => '123', // integer
    'ShowDetailedReturn' => '0 or 1', // boolean
    'SupplOrderDocument' => 'check additional information', // string (required)
    'ConsiderMinOrderQty' => '0 or 1', // boolean
    'ConsiderPackageUnits' => '0 or 1', // boolean
    'EstimatedDeliveryDate' => 'date format: YYYYMMDD hh:mm:ss[.mmm]', // string
    'OrderConsiderationStartDate' => 'date format: YYYYMMDD hh:mm:ss[.mmm]', // string
]);

function getPixiSoapClientResponse(string $method, array $arguments = [])
{
    $soapArguments = [];
    foreach ($arguments as $key => $value) {
        $soapArguments[] = new SoapVar($value, null, '', '', $key);
    }

    $soapClient = new SoapClient(null, [
        'login' => '...',
        'password' => '...',
        'uri' => 'https://apigateway.descartes.com/tms/pixi/',
        'location' => 'https://apigateway.descartes.com/tms/pixi/',
    ]);

    return $soapClient->__call($method, $soapArguments);
}