shipmentAction not specified: 
<?xml version="1.0" encoding="UTF-8"?>
<createShipmentResponse>
  <integrationHeader>
    <dateTimeStamp>{DATE}</dateTimeStamp>
    <transactionId>BCMYHJ-ZOSOFY-XPMRKB-FKCYCT-WFWU</transactionId>
    <applicationId>0703386001</applicationId>
  </integrationHeader>
  <completedShipment>
    <consignmentNumber>AB20005GB55600</consignmentNumber>
    <consignmentTrackingURL>https://somecarrier/tracking?track= AB20005GB55600</consignmentTrackingURL>
    <packages>
      <package>
        <packageId>examplepackage1</packageId>
        <trackingNumber>TT510322556GB</trackingNumber>
  <uniqueId>2807033860010000290A1</uniqueId>               <packageTrackingUrl>https://carrier/tracking?track=TT510322556GB</packageTrackingUrl>
      </package>
      <package>
        <packageId>examplepackage2</packageId>
        <trackingNumber>TT510322574GB</trackingNumber>
  <uniqueId>2807033860010000290A2</uniqueId>    <packageTrackingUrl>https://carrier/tracking?track=TT510322574GB</packageTrackingUrl>
      </package>
    </packages>
    <carrierCode>RMWW</carrierCode>
    <labelImage>kylkhgliibhhgblefschbkcb…(truncated Base64image)</labelImage>
    <labelImageFormat>PDF</labelImageFormat>
  </completedShipment>
</createShipmentResponse>

shipmentAction Allocate:
<createShipmentResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <integrationHeader>
        <dateTimeStamp>{DATE}</dateTimeStamp>
        <transactionId>abcdefghijklmnopqrstuvwxyz123456</transactionId>
        <applicationId>INTERSOFT1</applicationId>
    </integrationHeader>
    <completedShipment>
        <packages>
            <package>
                <packageId>1</packageId>
                <trackingNumber>TT000010538GB</trackingNumber>
                <uniqueId>28006978699900020510D</uniqueId>
                <packageTrackingUrl>http://www.royalmail.com/portal/rm/track?trackNumber=TT000010538GB</packageTrackingUrl>
                <formattedUniqueId>28006978699900020510D</formattedUniqueId>
            </package>
        </packages>
        <carrierCode>RYML</carrierCode>
        <labelImage xsi:nil="true" />
    </completedShipment>
</createShipmentResponse>

shipmentAction create:
<createShipmentResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <integrationHeader>
        <dateTimeStamp>{DATE}</dateTimeStamp>
        <transactionId>abcdefghijklmnopqrstuvwxyz123456</transactionId>
        <applicationId>INTERSOFT1</applicationId>
    </integrationHeader>
    <completedShipment>
        <carrierCode>RYML</carrierCode>
        <labelImage xsi:nil="true" />
    </completedShipment>
</createShipmentResponse>

shipmentAction create for non-barcoded service:
<createShipmentResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <integrationHeader>
        <dateTimeStamp>2018-07-16 10:37</dateTimeStamp>
        <transactionId>SO033552-PCKR023784-7AA7D7D1-DD1</transactionId>
        <applicationId>INTERSOFT1</applicationId>
    </integrationHeader>
    <completedShipment>
        <packages>
            <package>
                <packageId>1</packageId>
                <trackingNumber>28006978699914B230CFE</trackingNumber>
                <uniqueId>28006978699914B230CFE</uniqueId>
                <packageTrackingUrl>http://www.royalmail.com/portal/rm/track?trackNumber=28006978699914B230CFE</packageTrackingUrl>
                <formattedUniqueId>28006978699914B230CFE</formattedUniqueId>
            </package>
        </packages>
        <carrierCode>RYML</carrierCode>
        <labelImage xsi:nil="true" />
    </completedShipment>
</createShipmentResponse>
 

