<xs:element name="PaymentData" minOccurs="0" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:annotation>
    <xs:documentation>
      <p xmlns="http://Hps.Exchange.PosGateway">Payment Data received from payment tokenization service. Supported formats are Visa CAVV, Discover CAVV, AMEX Token Data Blocks, and MaterCard UCAF. All considered to be 3DSecure Type of Payment Data.  Binary data must be encoded using base16 (Hex encoding) or base64 encoding.</p>
      <p xmlns="http://Hps.Exchange.PosGateway" />
      <p xmlns="http://Hps.Exchange.PosGateway">
        <strong>Note:</strong>For Brand based 3DSecure Payment Data Sources, Payment Data is optional if no Payment Data was received due to a failed attempt to authenticate the card holder, in example.
            </p>
      <p xmlns="http://Hps.Exchange.PosGateway">For ApplePay, ApplePayApp, ApplePayWeb, GooglePayApp, GooglePayWeb, Payment Data is required.</p>
    </xs:documentation>
  </xs:annotation>
  <xs:complexType>
    <xs:simpleContent>
      <xs:extension base="PaymentDataType">
        <xs:attribute name="encoding" type="EncodingType" default="base64">
          <xs:annotation>
            <xs:documentation>Encoding used to encode binary PaymentData. Default is base64.</xs:documentation>
          </xs:annotation>
        </xs:attribute>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
</xs:element>