SAP-Web Session

Can anyone help

I try to record the SAP-Web Script by using Loanrunner V9.5.
However i couldnt' replay it that pop up errors "Error -26631: HTTP Status-Code=400 (No Session)"

how can i replace session below

web_submit_data("~flNUQVRFPTM2ODcuMDAyLjAxLjAx====",
"Action=http://csapdev01.sgc.ap.com:7000/sap(cz1TSUQlM2FBTk9OJTNhc2djc2FwZGV2MDFfR1lPXzAwJTNhTURJbHIzQlNzX1R5aDZCOVdZLUhyTVY5OHJMN0thS1FWOFltM2pUdy1BVFQ=)/bc/gui/sap/its/zlm00/~flNUQVRFPTM2ODcuMDAyLjAxLjAx====",
"Method=POST",
"RecContentType=text/html",
"Referer=http://csapdev01.sgc.ap.com:7000/sap(cz1TSUQlM2FBTk9OJTNhc2djc2FwZGV2MDFfR1lPXzAwJTNhTURJbHIzQlNzX1R5aDZCOVdZLUhyTVY5OHJMN0thS1FWOFltM2pUdy1BVFQ=)/bc/gui/sap/its/zlm00/?sap-client=920&sap-language=EN",
"Snapshot=t3.inf",
"Mode=HTML",
ITEMDATA,
"Name=~OkCode", "Value==SAVE", ENDITEM,
"Name=~FKey", "Value=", ENDITEM,
"Name=~Focusfield", "Value=", ENDITEM,
LAST);