Basic: Each week I send out an email about my latest podcast episode. Now, I create a rule that says that if they click on the link inside my email (sending them to my show notes page), they get tagged as Interest: Podcast. That means, should I ever want to send an email to those that I know are interested in my podcast, I can just select this tag. Easy.
Now, you can automatically send highly relevant emails encouraging them to buy the product or service they were considering. Customers who received multiple abandoned shopping cart emails are 2.4 times more likely to complete the purchase than those who receive only one followup email, according to Experian. Try sending the first message one day after, a second message 48 hours after, and possibly a third message within three or four days of abandonment.