{PASSTHRU:id} is not saving - by: nkmehr

I've been attempting to integrate LimeSurvey with SONA systems, to automatically provide participant credit once a survey has been completed.

However, when I change the "survey code" in the End URL to say {PASSTHRU:id}, then save my changes, instead of saving my changes it kicks me back to the Admin Page.

I've followed these instructions ( www.sona-systems.com/help/limesurvey_old.aspx ) exactly and I can't determine what I'm doing wrong or what the problem might be.

Any help/suggestions would be most appreciated, thanks!