In a VGWebTransaction program, the sysVar.sessionID system variable contains an ID that is specific to the web application server session. You can use the sysVar.sessionID value as a key value to access file or database information shared between programs running on behalf of a single user within a single internet session. A related variable for VGWebTransaction programs is sysVar.conversationID.
You can use sysVar.sessionID in these ways:
For characteristics and compatibility considerations, see sessionID.