<xs:element name="OpenMailingGroupResponse">
    <xs:annotation>
        <xs:documentation>Response from USPS to the customer request to open a Mailing Group</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:choice>
            <xs:element name="OpenMailingGroupAccept">
                <xs:annotation>
                    <xs:documentation>Response from USPS to the customer indicating that a Mailing Group was opened</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="ReturnInfo" type="mailxml:basicReturnInfoType" minOccurs="0" />
                    </xs:sequence>
                    <xs:attributeGroup ref="mailxml:MailXMLOpenMailGroupResponseHeaderInfo" />
                </xs:complexType>
            </xs:element>
            <xs:element name="OpenMailingGroupReject">
                <xs:annotation>
                    <xs:documentation>Response from USPS to the customer indicating that a Mailing Group could not be opened and why.</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="PostOfficeOfMailingZip" type="mailxml_base:es5" />
                        <xs:element name="ReturnInfo" type="mailxml:basicReturnInfoType" />
                    </xs:sequence>
                    <xs:attributeGroup ref="mailxml:MailXMLOpenMailGroupResponseHeaderInfo" />
                </xs:complexType>
            </xs:element>
        </xs:choice>
    </xs:complexType>
</xs:element>