Can CartStack Capture Email Addresses from Pop-ups?

CartStack code can capture email addresses from pop-ups which are contained on a client's site. We cannot capture from self-contained, third-party pop-ups such as MailChimp, which store all of their information outside of the client's site. In order to capture from pop-ups, our code must be able to communicate with the pop-up code. 

If a pop-up allows you to add our third-party JavaScript code to its header, we should be able to capture email addresses from those popups. 

For some third-party popups, some custom code added by the client or us can possibly make the email address available to capture. An example of a third party popup we can work with is We can work with SumoMe with some custom development from our lead developer.

Need help setting up CartStack to capture from your pop-ups? Email us at

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