Hello,
The following resolution was added to ticket [it-support-4542] ("tracking code install // narahthaiherb@gmail.com [Nytive]") :
Dear Amornrat,
Next time, please, specify both actions you want to track and client's email address evidently in the email text.
The script is below. I will ask Ohm to install it ASAP. Targeting page is www.undubzapp.com