For core sysVar variables, see EGL library sysLib.
For COBOL programs, the primary purpose of the session ID and conversation ID is to synchronize information between tiers 2 and 3.
The qualifier sysVar can precede the name of each EGL system variable listed in the following table:
| System variable | Description |
|---|---|
| conversationID | Stores the conversation ID that is assigned when an EGL program uses a VGUI record to present a web page. |
| sessionID considerations for web transactions | Contains an ID that is specific to the web application server session. |