In addition to the columns of data within your stored procedure, you can also make use of several system variables that are included with each result set. You can refer to a system variable in the same manner as you would for either singular or repeater data elements.
The system variables that are available are described in the following table:
Variable Name |
Description |
|---|---|
| SESSIONID | A unique GUID string value that identifies the specific notification event that generates the email message. |
| UNIQUEID | A unique GUID string value that identifies a specific email message recipient within a notification session/event. |