Think of a variable as automated text shortcuts. Instead of having to type in todays date, for example, you simply choose the Today's Date variable and Duet will fill in the date for you when the email is sent.
a. Click in the Insert Variable drop down box. This will show a list of variables/text shortcuts to choose from.
b. For this example, we will choose Today's Date.
Notice how the Insert to Subject and Insert to Message buttons are now active.
c. You can either have todays date auto put into the Subject of your email. Or you can have todays date auto put into the Message of your email. In this example, we will choose to put todays date at the end of the message.
c1. Click where, in your message, you would like todays date to go. In this example, at the end of the message.
c2. Click on Insert to Message button.
Duet will put the variable/text shortcut right where you asked her to.
Duet will replace {$today} with whatever todays date is when you send the email.