Hello Kevin,
In the request data. We need add some other information sentences before the XML payload. HTTP body is just like:
Version=0.0.1.0&TransCode=PAYENT&BankCode=102&GroupCIS=170290000013959&ID=cs01.y.1702&PackageID=201307250000003&Cert=&reqData=<?xml version=\"1.0\" encoding=\"UTF-8\"?><CMS><eb><pub><TransCode>PAYENT</TransCode><CIS>170290000013959</CIS><BankCode>102</BankCode><ID>cs01.y.1702</ID><TranDate>20130725</TranDate><TranTime>0951547123</TranTime><fSeqno>201307250000003</fSeqno></pub></eb></CMS>
There is no way to dynamically build the prolog using HTTP Adapter. If you are sure that this value
Version=0.0.1.0&TransCode=PAYENT&BankCode=102&GroupCIS=170290000013959&ID=cs01.y.1702&PackageID=201307250000003&Cert=&reqData=
is a constant, then you just enter it in Prolog under XI Payload Manipulation.
Otherwise, you need to do as what Michal suggested.
You can refer to this blog, see HTTP POST Receiver
http://scn.sap.com/docs/DOC-29829
Regards,
Mark