The example data below will process a credit card Void transaction through the payment server. The PNRef parameter should be changed when testing this example yourself. Note: pass the card number and ExpDate with null values on voids

Parameter Value
Username test
Password 123
TransType Void
PNRef 2308

<?xml version=”1.0″ encoding=”utf-8″ ?>

<Response xmlns:xsd=”” xmlns:xsi=”” xmlns=””>

<Result>0</Result><RespMSG>Approved</RespMSG><AuthCode>VITAL4</AuthCode> <PNRef>2309</PNRef>