<PixiCreateReturnPost200TextXmlResponse>
  <InvoiceKey>0</InvoiceKey>
  <InvoiceNr>string</InvoiceNr>
  <InvDate>string</InvDate>
  <CustRef>0</CustRef>
  <AddrRef>0</AddrRef>
  <Summary>0</Summary>
  <VATBaseHigh>0</VATBaseHigh>
  <VATBaseLow>0</VATBaseLow>
  <VATType>string</VATType>
  <VATNo>string</VATNo>
  <skontoprozent>string</skontoprozent>
  <SkontoAbz>0</SkontoAbz>
  <total>0</total>
  <Payment>string</Payment>
  <Printed>string</Printed>
  <PrintDate>string</PrintDate>
  <Supporter>string</Supporter>
  <SupportPhone>string</SupportPhone>
  <PayDay>string</PayDay>
  <Payed>string</Payed>
  <PayedSum>0</PayedSum>
  <SUGKTO>string</SUGKTO>
  <BuchuText>string</BuchuText>
  <AuszugNr>string</AuszugNr>
  <Account>string</Account>
  <BLZ>string</BLZ>
  <AccName>string</AccName>
  <LSDate>string</LSDate>
  <LSNr>0</LSNr>
  <RLSDate>string</RLSDate>
  <RLSCost>0</RLSCost>
  <Reminder1Date>string</Reminder1Date>
  <Reminder2Date>string</Reminder2Date>
  <Reminder3Date>string</Reminder3Date>
  <CardDate>string</CardDate>
  <CardCheck>string</CardCheck>
  <CardType>string</CardType>
  <CardName>string</CardName>
  <CardNr>string</CardNr>
  <CardExp>string</CardExp>
  <Note>string</Note>
  <NODRef>0</NODRef>
  <ShipCode>string</ShipCode>
  <CreateDate>string</CreateDate>
  <CreateEmp>string</CreateEmp>
  <UpdateDate>string</UpdateDate>
  <UpdateEmp>string</UpdateEmp>
  <BoxNr>0</BoxNr>
  <Total_OrderCurr>0</Total_OrderCurr>
  <Total_ShipCost>0</Total_ShipCost>
  <Total_ShipCost_OrderCurr>0</Total_ShipCost_OrderCurr>
  <GNMcharge>string</GNMcharge>
  <ScanOutDate>string</ScanOutDate>
  <OrderCurrency>string</OrderCurrency>
  <VATBaseHigh_OrderCurr>0</VATBaseHigh_OrderCurr>
  <VATBaseLow_OrderCurr>0</VATBaseLow_OrderCurr>
  <VATHighPerc>0</VATHighPerc>
  <VATLowPerc>0</VATLowPerc>
  <VATHigh>0</VATHigh>
  <VATLow>0</VATLow>
  <VATHigh_OrderCurr>0</VATHigh_OrderCurr>
  <VATLow_OrderCurr>0</VATLow_OrderCurr>
  <VATHText>string</VATHText>
  <VATLText>string</VATLText>
  <RefToInvoiceNr>string</RefToInvoiceNr>
  <RefToInvoiceKey>0</RefToInvoiceKey>
  <CCFeeProvision>string</CCFeeProvision>
  <CCAddFee>0</CCAddFee>
  <CCFeeCurrency>string</CCFeeCurrency>
  <BankFeeAmmount>0</BankFeeAmmount>
  <CostChargeShop>0</CostChargeShop>
  <CostChargeCurrency>string</CostChargeCurrency>
  <ChargeVAT>string</ChargeVAT>
  <IssueNr>string</IssueNr>
  <ShipVendor>string</ShipVendor>
  <CCPPaymentDone>string</CCPPaymentDone>
  <CCPAuthCode>string</CCPAuthCode>
  <CCPNumOfTries>0</CCPNumOfTries>
  <CCPReCharge>string</CCPReCharge>
  <ShipAdrRef>0</ShipAdrRef>
  <InvLocationID>string</InvLocationID>
  <TimesPrinted>0</TimesPrinted>
  <InvShopID>string</InvShopID>
  <CCPShipCostChargedYN>string</CCPShipCostChargedYN>
  <CCPChargedSoFar>0</CCPChargedSoFar>
  <PackageNetWeight>string</PackageNetWeight>
  <PackageGrossWeight>string</PackageGrossWeight>
  <IsPackageLost>string</IsPackageLost>
  <InvShipLock>string</InvShipLock>
  <InvTrackNumber>string</InvTrackNumber>
  <ShipVendorIncrement1>0</ShipVendorIncrement1>
  <VoucherSum>0</VoucherSum>
  <VoucherID>string</VoucherID>
  <VATinShipCost>string</VATinShipCost>
  <ShippedByVendor>true</ShippedByVendor>
  <VATBaseLow_ShipCost>0</VATBaseLow_ShipCost>
  <VATBaseHigh_ShipCost>0</VATBaseHigh_ShipCost>
  <ccpPayID>string</ccpPayID>
  <ccpTransID>string</ccpTransID>
  <ReminderLevel>0</ReminderLevel>
  <ReminderProcessed>string</ReminderProcessed>
  <ReminderCosts>0</ReminderCosts>
  <ReminderReason>string</ReminderReason>
  <ccpSetFailTries>0</ccpSetFailTries>
  <ccpSetFailLastTime>string</ccpSetFailLastTime>
  <ShipmentTrackingID>string</ShipmentTrackingID>
  <ReturnReason>string</ReturnReason>
  <StockNote>string</StockNote>
  <ReturnSupplier>string</ReturnSupplier>
  <ReturnClosed>string</ReturnClosed>
  <Fulfillment>true</Fulfillment>
  <InvoiceMailSent>true</InvoiceMailSent>
  <TrackingIDsent>string</TrackingIDsent>
  <PaidByCustomer>0</PaidByCustomer>
  <PLHref>0</PLHref>
  <Packages>0</Packages>
  <DiscountTotal>0</DiscountTotal>
  <PaidAtCreation>0</PaidAtCreation>
  <TextIfNoInvlines>string</TextIfNoInvlines>
  <retTrackID>string</retTrackID>
  <retTrackIDhist>string</retTrackIDhist>
  <_x0031_SS>true</_x0031_SS>
  <DueDate>string</DueDate>
  <CreateDTAUS>true</CreateDTAUS>
  <InvCreationMode>string</InvCreationMode>
  <VATBaseHigh_ShipCost_OrderCurr>0</VATBaseHigh_ShipCost_OrderCurr>
  <VATBaseLow_ShipCost_OrderCurr>0</VATBaseLow_ShipCost_OrderCurr>
  <VATBaseZero_ShipCost>0</VATBaseZero_ShipCost>
  <VATHigh_ShipCost>0</VATHigh_ShipCost>
  <VATLow_ShipCost>0</VATLow_ShipCost>
  <OrderType>string</OrderType>
  <Total_Net>0</Total_Net>
  <VATBaseZero>0</VATBaseZero>
  <Total_ShipCost_Net>0</Total_ShipCost_Net>
  <ChargeHighVATInShipCost>true</ChargeHighVATInShipCost>
  <DontChargeShipCostOn2ndDelivery>string</DontChargeShipCostOn2ndDelivery>
  <ExecutionDate>string</ExecutionDate>
  <SEPAMandateReferenceRef>0</SEPAMandateReferenceRef>
  <ReturnCostsAmount>0</ReturnCostsAmount>
  <ReturnCostsAmount_Net>0</ReturnCostsAmount_Net>
</PixiCreateReturnPost200TextXmlResponse>

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:pixiCreateReturn>
            <BIC xsi:type="xsd:string"></BIC>
            <BLZ xsi:type="xsd:string"></BLZ>
            <IBAN xsi:type="xsd:string"></IBAN>
            <Note xsi:type="xsd:string"></Note>
            <Prices xsi:type="xsd:string">5,99;</Prices> <!-- required -->
            <Account xsi:type="xsd:string"></Account>
            <ShipCost xsi:type="xsd:number"></ShipCost>
            <CAComment xsi:type="xsd:string"></CAComment>
            <CreateEmp xsi:type="xsd:string"></CreateEmp>
            <InvoiceNr xsi:type="xsd:string"></InvoiceNr> <!-- required -->
            <CreateDate xsi:type="xsd:string">date format: YYYYMMDD hh:mm:ss[.mmm]</CreateDate>
            <LanguageId xsi:type="xsd:integer"></LanguageId>
            <Quantities xsi:type="xsd:string">1;2;3;</Quantities> <!-- required -->
            <AccountName xsi:type="xsd:string"></AccountName> <!-- required -->
            <CreateDTAUS xsi:type="xsd:boolean"></CreateDTAUS>
            <DoNotRefund xsi:type="xsd:boolean"></DoNotRefund>
            <InvoiceDate xsi:type="xsd:string">date format: YYYYMMDD hh:mm:ss[.mmm]</InvoiceDate>
            <PaymentType xsi:type="xsd:string"></PaymentType> <!-- required -->
            <InvoiceLines xsi:type="xsd:string">123;</InvoiceLines> <!-- required -->
            <ReturnCaseID xsi:type="xsd:integer"></ReturnCaseID>
            <ReturnClosed xsi:type="xsd:boolean"></ReturnClosed>
            <ReturnReason xsi:type="xsd:string"></ReturnReason>
            <Voucher_Amount xsi:type="xsd:number">9.78</Voucher_Amount>
            <ReturnCostsAmount xsi:type="xsd:number"></ReturnCostsAmount>
            <MarkReturnDocumentForPrinting xsi:type="xsd:boolean">0</MarkReturnDocumentForPrinting>
        </ns1:pixiCreateReturn>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

<?php

getPixiSoapClientResponse('pixiCreateReturn', [
    'BIC' => '', // string
    'BLZ' => '', // string
    'IBAN' => '', // string
    'Note' => '', // string
    'Prices' => '5,99;', // string (required)
    'Account' => '', // string
    'ShipCost' => '', // number
    'CAComment' => '', // string
    'CreateEmp' => '', // string
    'InvoiceNr' => '', // string (required)
    'CreateDate' => 'date format: YYYYMMDD hh:mm:ss[.mmm]', // string
    'LanguageId' => '', // integer
    'Quantities' => '1;2;3;', // string (required)
    'AccountName' => '', // string (required)
    'CreateDTAUS' => '', // boolean
    'DoNotRefund' => '', // boolean
    'InvoiceDate' => 'date format: YYYYMMDD hh:mm:ss[.mmm]', // string
    'PaymentType' => '', // string (required)
    'InvoiceLines' => '123;', // string (required)
    'ReturnCaseID' => '', // integer
    'ReturnClosed' => '', // boolean
    'ReturnReason' => '', // string
    'Voucher_Amount' => '9.78', // number
    'ReturnCostsAmount' => '', // number
    'MarkReturnDocumentForPrinting' => '0', // boolean
]);

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);
}