Design Studio AGS call delete not working

I am trying to get the AGS call below to delete a record from a file.  I have checked all the variables to make sure they are populated properly.  Is it because the form,,FE14, requires a inquire before the delete?   I am getting message nbr =11 and message "no more records for given key".  Any suggestions ?  I am new to this and therefore I am Javascript challenged!

var s = portalWnd.AGSPath + "?_PDL=";
                  s += portalWnd.oUserProfile.getAttribute("productline");
                  s += "&_TKN=FE14.1&_EVT=CHG&_LFN=All&_RTN=DATA&_TDS=IGNORE&FC=C";
                  s += "&F26-REVIEWERr0="+vRev;
                  s += "&LINE-FCr0=D";
                  s += "&F26-COMPANYr0="+vComp;
                  s += "&F26-ACCT-UNITr0="+vAcctUnit;
                  s += "&OUT=XML&_EOT=TRUE";
              alert("string "+s)                
              // submit FEREVIEWER delete AGScall to server
              var sAGSInfo = portalWnd.httpRequest(s);