Loadrunner script for SAP Netweaver server login faile Error -26627: HTTP Status Code =404

Hi, I am trying record VU script for a sap webdynpro application to intiate it’s redirected to netweaver login . I am able to record script but while replaying getting HTTP Status 404 for web_submit_data response, this web request have one parameter names j_salt have dynamic value. but in replay response no where I am able to find this parameter reference to corelate. Anyone face this kind of problem and have solution it would be appreciated. Loadrunner version: 11.51 IE: 9 Protocol tried: SAP Web, WEB-HTTP/HTML PFA image for vu script and error