Conversion Rate

The percentage of recipients who completed a desired action (such as making a purchase) after clicking on a link in the email.

After CTR most important metric is Conversion Rate which is a direct indication of how much people having interest on your content or writing in email you sent.

If you need to track and re-engage your clients there are automated solutions for that such us Page Envelope`s Auto Re-Targeting Module. Also equipped with proprietary A.I.D SERS Module.