Variables are used in templates as placeholders for dynamic data.
Simple variables are referenced by surrounding the variable name with "commercial at" (\@) signs:
<!-- simple variables --> <b><i>\@first_name\@ \@last_name\@</b></i>
When processing this template, the server will look for variables named first_name and last_name and substitute their values in the output:
<b><i>Fred Finkel</b></i>
The columns of a row variable are referenced by separating the data source name and column with a period:
<!-- onerow or multirow data sources --> <b><i>\@user.first_name\@ \@user.last_name\@</b></i>
An attempt to reference a variable that does not exist will cause an error message to appear in the browser.