<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
    <xs:complexType name="extendedAttributes">
        <xs:annotation>
            <xs:documentation>It defines the customizable portion of the message, allowing for the inclusion of additional context or details tailored to specific needs.</xs:documentation>
        </xs:annotation>
        <xs:sequence>
            <xs:element name="attribute" maxOccurs="unbounded">
                <xs:annotation>
                    <xs:documentation>It holds the actual attribute value.

                        Allowable Values: Text string
                        Required: Yes
                        Max length: 200
                        Default Value: blank
                        Restrictions: N/A</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:simpleContent>
                        <xs:extension base="xs:string">
                            <xs:attribute name="name" use="required">
                                <xs:annotation>
                                    <xs:documentation>Attribute title
                                        Allowable Values: Text string
                                        Required: Yes
                                        Max length: 30
                                        Default Value: blank
                                        Restrictions: Yes</xs:documentation>
                                </xs:annotation>
                                <xs:simpleType>
                                    <xs:restriction base="xs:string">
                                        <xs:maxLength value="30"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:attribute>
                        </xs:extension>
                    </xs:simpleContent>
                </xs:complexType>
            </xs:element>
        </xs:sequence>
    </xs:complexType>
    <xs:element name="orderStatuses">
        <xs:annotation>
            <xs:documentation>Comment describing your root element</xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>
                <xs:element name="order" maxOccurs="unbounded">
                    <xs:complexType>
                        <xs:all>
                            <xs:element name="wmsOrderRef">
                                <xs:annotation>
                                    <xs:documentation>This is the order reference assigned in Radial WMS system.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:simpleType>
                                    <xs:restriction base="xs:string">
                                        <xs:minLength value="1"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>
                            <xs:element name="partnerOrderId">
                                <xs:annotation>
                                    <xs:documentation>Your own order reference as passed to GSI at
                                        the point of exporting the order to us. This will be passed
                                        through the system unchanged.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:simpleType>
                                    <xs:restriction base="xs:string">
                                        <xs:minLength value="1"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>
                            <xs:element name="orderStatus" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation>One of the following order status updates:
                                        ACKNOWLEDGED - The sales order has been accepted in Radial's
                                        systems. ALLOCATED - The sales order has been hard allocated
                                        in WMS. UNALLOCATED - The sales order has been unallocated,
                                        so no hard stock allocated against the order. PICKED - The
                                        sales is being picked PACKED - The sales order is being
                                        packed. CANCELLED - Full or partial sales order
                                        cancellation. LOADED - Loaded in the truck. DESPATCHED - The
                                        goods are about to leave the warehouse. At this stage the
                                        stock leave the WMS inventory.
                                    </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element name="orderStatusDate" type="xs:dateTime">
                                <xs:annotation>
                                    <xs:documentation>The date and time stamp associated with this
                                        status change, this is given in ISO8601 format, for example:
                                        2011-09-19T14:25:55.000Z
                                    </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element name="lines" minOccurs="0">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element name="line" maxOccurs="unbounded">
                                            <xs:complexType>
                                                <xs:all>
                                                    <xs:element name="rucItemId" type="xs:string">
                                                        <xs:annotation>
                                                            <xs:documentation>RUC Internal item ID</xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="sku">
                                                        <xs:annotation>
                                                            <xs:documentation>Unique product identifier used by Radial
                                                                to communicate with the Retail system. It must be unique
                                                                across entire client item master.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="altSku" type="xs:string"
                                                                minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>Where possible GSI will also
                                                                hold additional identifiers against a SKU, these
                                                                will be exported with the primary SKU for
                                                                reference purposes.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="quantityRequired"
                                                                type="xs:integer">
                                                        <xs:annotation>
                                                            <xs:documentation>The quantity of a SKU that is
                                                                required for the order to be completed, this may
                                                                change if cancellations are made against the
                                                                order, depending on your integration this may or
                                                                may not be possible.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="quantityAllocated"
                                                                type="xs:integer">
                                                        <xs:annotation>
                                                            <xs:documentation>Stock is allocated to an order
                                                                at the point of import on a “first come, first
                                                                served” basis. Should there not be sufficient
                                                                available stock to fulfil an order, it may not be
                                                                possible to allocate the full required amount.
                                                                Dependent on your business rules, additional
                                                                product may be placed on back
                                                                order.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="quantityDespatched"
                                                                type="xs:integer" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>If items have already been
                                                                dispatched on this line, the quantityDespatched
                                                                figure will reflect this. This tag will be missing
                                                                from the ACKNOWLEDGED status as there will not
                                                                have been any dispatches at the point the order is
                                                                acknowledged.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="quantityCancelled"
                                                                type="xs:integer" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>If an item is cancelled from the
                                                                order, it will be reflected in this figure.
                                                                Cancellations can happen due to customer request
                                                                or for operational reasons.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="quantityLost" type="xs:integer"
                                                                minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>If at the point of order import
                                                                into the GSI system, we are unable to allocate
                                                                stock to an order the item will become “lost”.
                                                                This is equivalent to a cancelled item but occurs
                                                                when the item can not be allocated. Items will
                                                                only be lost if business logic dictates the item
                                                                can not be back ordered.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="externalLineReference"
                                                                minOccurs="0" type="xs:string">
                                                        <xs:annotation>
                                                            <xs:documentation>It will quote the value provided
                                                                in sales order interface line level field:
                                                                lineNumber. If blank valued have been provided in
                                                                sales order interface for lineNumber field then
                                                                this element won't be
                                                                populated.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="attributeOne" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>Custom order line
                                                                attribute
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:simpleType>
                                                            <xs:restriction base="xs:string">
                                                                <xs:maxLength value="30"/>
                                                            </xs:restriction>
                                                        </xs:simpleType>
                                                    </xs:element>
                                                    <xs:element name="attributeTwo" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>Custom order line
                                                                attribute
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:simpleType>
                                                            <xs:restriction base="xs:string">
                                                                <xs:maxLength value="30"/>
                                                            </xs:restriction>
                                                        </xs:simpleType>
                                                    </xs:element>
                                                    <xs:element name="attributeThree" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>Custom order line
                                                                attribute
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:simpleType>
                                                            <xs:restriction base="xs:string">
                                                                <xs:maxLength value="30"/>
                                                            </xs:restriction>
                                                        </xs:simpleType>
                                                    </xs:element>
                                                    <xs:element minOccurs="0"
                                                                name="extendedAttributes"
                                                                type="extendedAttributes">
                                                        <xs:annotation>
                                                            <xs:documentation>It holds the customizable section at the sales order line level, allowing for the addition of supplementary details specific to individual line items.</xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="rucOrderLineId"
                                                                type="xs:unsignedLong" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>RUC Order Line ID</xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                </xs:all>
                                            </xs:complexType>
                                        </xs:element>
                                    </xs:sequence>
                                </xs:complexType>
                            </xs:element>
                            <xs:element name="packages" minOccurs="0">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element name="package" maxOccurs="unbounded">
                                            <xs:complexType>
                                                <xs:all>
                                                    <xs:element name="consignmentNumber">
                                                        <xs:annotation>
                                                            <xs:documentation>Carrier tracking
                                                                number.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:simpleType>
                                                            <xs:restriction base="xs:string">
                                                                <xs:minLength value="1"/>
                                                            </xs:restriction>
                                                        </xs:simpleType>
                                                    </xs:element>
                                                    <xs:element name="consignmentCarrier"
                                                                type="xs:string" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>Carrier code allocated to the
                                                                given parcel.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="metapackReference"
                                                                type="xs:string" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>Legacy / no longer in
                                                                use
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="packageNumber" type="xs:string"
                                                                minOccurs="0"/>
                                                    <xs:element name="metapackStatus" type="xs:string"
                                                                minOccurs="0"/>
                                                    <xs:element name="carrierTrackingUrl"
                                                                type="xs:string" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>TMS tracking URL for each parcel
                                                                where applicable. The customer could use it for
                                                                tracing the parcel as it goes through the carrier
                                                                network. Note, the untracked carrier services may
                                                                not have a tracking URL.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="lines">
                                                        <xs:complexType>
                                                            <xs:sequence>
                                                                <xs:element name="line" maxOccurs="unbounded">
                                                                    <xs:complexType>
                                                                        <xs:all>
                                                                            <xs:element name="rucItemId">
                                                                                <xs:simpleType>
                                                                                    <xs:restriction base="xs:string">
                                                                                        <xs:minLength value="1"/>
                                                                                    </xs:restriction>
                                                                                </xs:simpleType>
                                                                            </xs:element>
                                                                            <xs:element name="sku"/>
                                                                            <xs:element name="altSku" type="xs:string"
                                                                                        minOccurs="0"/>
                                                                            <xs:element name="quantity" type="xs:integer"/>
                                                                            <xs:element minOccurs="0" name="batchNumber">
                                                                                <xs:annotation>
                                                                                    <xs:documentation>Optional. It
                                                                                        provides additional
                                                                                        level of tracking/allocation for
                                                                                        item inventory in
                                                                                        the warehouse management
                                                                                        system.
                                                                                    </xs:documentation>
                                                                                </xs:annotation>
                                                                                <xs:simpleType>
                                                                                    <xs:restriction base="xs:string">
                                                                                    </xs:restriction>
                                                                                </xs:simpleType>
                                                                            </xs:element>
                                                                            <xs:element minOccurs="0" name="serialNumbers">
                                                                                <xs:complexType>
                                                                                    <xs:sequence>
                                                                                        <xs:element maxOccurs="unbounded"
                                                                                                    name="serialNumber" type="xs:string">
                                                                                            <xs:annotation>
                                                                                                <xs:documentation>Serial
                                                                                                    numbers associated
                                                                                                    to the given
                                                                                                    shipping parcel line
                                                                                                </xs:documentation>
                                                                                            </xs:annotation>
                                                                                        </xs:element>
                                                                                    </xs:sequence>
                                                                                </xs:complexType>
                                                                            </xs:element>
                                                                            <xs:element name="externalLineReference"
                                                                                        minOccurs="0" type="xs:string">
                                                                                <xs:annotation>
                                                                                    <xs:documentation>It will quote the
                                                                                        value provided
                                                                                        in sales order interface line
                                                                                        level field:
                                                                                        lineNumber. This is an optional
                                                                                        field. Please check with
                                                                                        integration team
                                                                                        whether this field will be
                                                                                        available for your
                                                                                        implementation.
                                                                                    </xs:documentation>
                                                                                </xs:annotation>
                                                                            </xs:element>
                                                                            <xs:element name="rucOrderLineId"
                                                                                        type="xs:unsignedLong" minOccurs="0">
                                                                                <xs:annotation>
                                                                                    <xs:documentation>RUC Order Line ID</xs:documentation>
                                                                                </xs:annotation>
                                                                            </xs:element>
                                                                            <xs:element name="stockPool" type="xs:string"
                                                                                        minOccurs="0">
                                                                                <xs:annotation>
                                                                                    <xs:documentation>Shipped stock bucket code assigned to parcel. E.g. grade A.</xs:documentation>
                                                                                </xs:annotation>
                                                                            </xs:element>
                                                                        </xs:all>
                                                                    </xs:complexType>
                                                                </xs:element>
                                                            </xs:sequence>
                                                        </xs:complexType>
                                                    </xs:element>
                                                    <xs:element minOccurs="0" name="ssccReference">
                                                        <xs:annotation>
                                                            <xs:documentation>Serial shipping container code.
                                                                WMS application internally generated SSCC code
                                                                during the creation of the shipment. Check with
                                                                the implementation team if this is available on
                                                                your WMS processes and data flow. Data type: 18
                                                                digits
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:simpleType>
                                                            <xs:restriction base="xs:string">
                                                                <xs:pattern value="[0-9]{18}"/>
                                                            </xs:restriction>
                                                        </xs:simpleType>
                                                    </xs:element>
                                                    <xs:element default="EEUK01" minOccurs="0"
                                                                name="distributionCentre">
                                                        <xs:annotation>
                                                            <xs:documentation>Distribution centre (facility
                                                                code) the stock has been despatched. The exact
                                                                codes are provided by the implementation
                                                                manager.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:simpleType>
                                                            <xs:restriction base="xs:string">
                                                                <xs:maxLength value="15"/>
                                                            </xs:restriction>
                                                        </xs:simpleType>
                                                    </xs:element>
                                                    <xs:element minOccurs="0"
                                                                name="returnTrackingNumber">
                                                        <xs:annotation>
                                                            <xs:documentation>Optional element. Return tracking
                                                                number. Available only when automatic return label is
                                                                created during outbound.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element minOccurs="0" name="parentLpnId"
                                                                type="xs:string">
                                                        <xs:annotation>
                                                            <xs:documentation>Optional element
                                                                Parent License Plate Number. It may populate in the
                                                                event the outbound parcel is consolidated onto a pallet.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element minOccurs="0"
                                                                name="consignmentServiceCode" type="xs:string">
                                                        <xs:annotation>
                                                            <xs:documentation>Carrier service code associated with the
                                                                shipped parcel, e.g. STD, PACKET, SP, 2MH
                                                                Codes may vary based on the transport solution put in
                                                                place at the time of your interface implementation.
                                                                Liaise with the implementation manager for the expected
                                                                codes in your shipment order flow.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element name="weight" minOccurs="0">
                                                        <xs:annotation>
                                                            <xs:documentation>Estimated container/package weight. Decimal value with three
                                                                decimal places. Suppress any thousand separator. Decimal
                                                                separator should be period. I.e. 1.454
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:complexType>
                                                            <xs:simpleContent>
                                                                <xs:extension base="xs:decimal">
                                                                    <xs:attribute name="unitOfMeasure"
                                                                                  type="xs:string" use="required">
                                                                        <xs:annotation>
                                                                            <xs:documentation>Unit of measure of weight.
                                                                                E.g kg,lb
                                                                            </xs:documentation>
                                                                        </xs:annotation>
                                                                    </xs:attribute>
                                                                </xs:extension>
                                                            </xs:simpleContent>
                                                        </xs:complexType>
                                                    </xs:element>
                                                    <xs:element name="dimensions" minOccurs="0">
                                                        <xs:complexType>
                                                            <xs:all>
                                                                <xs:element name="length">
                                                                    <xs:annotation>
                                                                        <xs:documentation>Estimated container/package length.
                                                                            Decimal value with two decimal
                                                                            places. Suppress any thousand
                                                                            separator. Decimal separator should
                                                                            be period. I.e. 14.54
                                                                        </xs:documentation>
                                                                    </xs:annotation>
                                                                    <xs:complexType>
                                                                        <xs:simpleContent>
                                                                            <xs:extension base="xs:decimal">
                                                                                <xs:attribute name="unitOfMeasure"
                                                                                              type="xs:string" use="required">
                                                                                    <xs:annotation>
                                                                                        <xs:documentation>Unit
                                                                                            of measure of
                                                                                            length. E.g cm,in
                                                                                        </xs:documentation>
                                                                                    </xs:annotation>
                                                                                </xs:attribute>
                                                                            </xs:extension>
                                                                        </xs:simpleContent>
                                                                    </xs:complexType>
                                                                </xs:element>
                                                                <xs:element name="width">
                                                                    <xs:annotation>
                                                                        <xs:documentation>Estimated container/package width. Decimal
                                                                            value with two decimal places.
                                                                            Suppress any thousand separator.
                                                                            Decimal separator should be period.
                                                                            I.e. 14.54
                                                                        </xs:documentation>
                                                                    </xs:annotation>
                                                                    <xs:complexType>
                                                                        <xs:simpleContent>
                                                                            <xs:extension base="xs:decimal">
                                                                                <xs:attribute name="unitOfMeasure"
                                                                                              type="xs:string" use="required">
                                                                                    <xs:annotation>
                                                                                        <xs:documentation>Unit
                                                                                            of measure of
                                                                                            width. E.g cm,in
                                                                                        </xs:documentation>
                                                                                    </xs:annotation>
                                                                                </xs:attribute>
                                                                            </xs:extension>
                                                                        </xs:simpleContent>
                                                                    </xs:complexType>
                                                                </xs:element>
                                                                <xs:element name="height">
                                                                    <xs:annotation>
                                                                        <xs:documentation>Estimated container/package height.
                                                                            Decimal value with two decimal
                                                                            places. Suppress any thousand
                                                                            separator. Decimal separator should
                                                                            be period. I.e. 14.54
                                                                        </xs:documentation>
                                                                    </xs:annotation>
                                                                    <xs:complexType>
                                                                        <xs:simpleContent>
                                                                            <xs:extension base="xs:decimal">
                                                                                <xs:attribute name="unitOfMeasure"
                                                                                              type="xs:string" use="required">
                                                                                    <xs:annotation>
                                                                                        <xs:documentation>Unit
                                                                                            of measure of
                                                                                            height. E.g cm,in
                                                                                        </xs:documentation>
                                                                                    </xs:annotation>
                                                                                </xs:attribute>
                                                                            </xs:extension>
                                                                        </xs:simpleContent>
                                                                    </xs:complexType>
                                                                </xs:element>
                                                            </xs:all>
                                                        </xs:complexType>
                                                    </xs:element>
                                                    <xs:element minOccurs="0" name="wmsContainerType"
                                                                type="xs:string">
                                                        <xs:annotation>
                                                            <xs:documentation>Warehouse management system shipping container type code.</xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                    <xs:element minOccurs="0" name="wmsContainerSize"
                                                                type="xs:string">
                                                        <xs:annotation>
                                                            <xs:documentation>Warehouse management system shipping container size code.</xs:documentation>
                                                        </xs:annotation>
                                                    </xs:element>
                                                </xs:all>
                                            </xs:complexType>
                                        </xs:element>
                                    </xs:sequence>
                                </xs:complexType>
                            </xs:element>
                            <xs:element default="EEDE01" minOccurs="0" name="distributionCentre">
                                <xs:annotation>
                                    <xs:documentation>Distribution centre (facility code) the stock the order has been
                                        posted to. The exact codes are provided by the implementation manager.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:simpleType>
                                    <xs:restriction base="xs:string">
                                        <xs:maxLength value="15"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>
                            <xs:element minOccurs="0" name="clientId" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation>Client identifier/code. It is provided during the implementation
                                        phase.
                                    </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" name="extendedAttributes"
                                        type="extendedAttributes">
                                <xs:annotation>
                                    <xs:documentation>It defines the customizable section of the sales order header, enabling the inclusion of additional information tailored to specific client requirements.</xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" name="externalOrderReference" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation>Extern order referece is interfaced at the time of order creation/update.</xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" name="orderType" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation>Order type e.g. B2C, B2B</xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element name="shippingClassification" type="xs:string" minOccurs="0">
                                <xs:annotation>
                                    <xs:documentation>Shipment Classification – Expected Values:
                                        EU: Shipments where both the origin and destination are within European Union member countries.
                                        DOMESTIC: Shipments where the destination address is located in the same country as the shipping facility.
                                        ROW: (Rest of World) Shipments to countries outside the EU and domestic regions. These may be subject to import duties, taxes, and customs clearance procedures.</xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element name="currencyCode" type="xs:string" minOccurs="0">
                                <xs:annotation>
                                    <xs:documentation>3 letter order currency code as given with order create.</xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element name="costCentre" type="xs:string" minOccurs="0">
                                <xs:annotation>
                                    <xs:documentation>Brand identifier or cost center code for additional sales order segmentation</xs:documentation>
                                </xs:annotation>
                            </xs:element>
                        </xs:all>
                    </xs:complexType>
                </xs:element>
                <xs:element name="messageId" type="xs:long" minOccurs="0">
                    <xs:annotation>
                        <xs:documentation>Numeric unique Radial RUC outbound message ID. It's
                            recommended to be used on: -------------------------------------- 1)
                            Avoiding duplicate message processing; 2) Debugging if a certain message
                            has been sent/received/acknowledged. Limitation: Radial doesn't
                            guarantee the delivery of messages in the sequence
                            order.
                        </xs:documentation>
                    </xs:annotation>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>
