<xs:complexType name="CheckVoidReqBlock1Type" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:all>
    <xs:element name="GatewayTxnId" type="txnIdType" minOccurs="0">
      <xs:annotation>
        <xs:documentation>
          <p xmlns="http://Hps.Exchange.PosGateway">Gateway-generated transaction identifier returned in the response of the original transaction. This indicates the transaction to be updated.</p>
        </xs:documentation>
      </xs:annotation>
    </xs:element>
    <xs:element name="ClientTxnId" type="clientIdType" minOccurs="0">
      <xs:annotation>
        <xs:documentation>
          <p xmlns="http://Hps.Exchange.PosGateway">Client generated transaction identifier sent in the request of the original transaction. This indicates the transaction to be updated.</p>
          <p xmlns="http://Hps.Exchange.PosGateway" />
          <p xmlns="http://Hps.Exchange.PosGateway">
            <strong>Note:</strong> Client generated ids are critical for situations when the client never receives a response from the gateway.
            </p>
        </xs:documentation>
      </xs:annotation>
    </xs:element>
  </xs:all>
</xs:complexType>