We're going to need more information probably. Are you sending these variables as header key/value pairs, in a POST submit form or in a url query string.
Without knowing more I'm guessing the '@' character is getting url encoded through Jmeter which the server didn't expect. What does Jmeter send out on the wire (through a 'view results in a tree' listener or through http debug logs) versus what is expected (I'm assuming how you send it through a web browser?). > From: cesar_s...@fitnyc.edu > Date: Wed, 19 Mar 2014 15:50:33 -0400 > Subject: Problems authenticating using "@" as sid > To: user@jmeter.apache.org > > I am using JMeter 2.11 to load test Self Service on a Weblogic Server and I > am having problem authenticating. In the ValLogin page, I created two > variables > sid ${sid} > pin ${pin} > The format for sid is like "@01251234" and pin is "1234", but are having > problems when running the script. If I go the manual way and insert the > values into the varialbes, I don't have any problems. Is there any way > that I can resolve this issue? > > > *Cesar Sosa* > > *Banner/Oracle Database Administrator*