Using the URL to automatically add a free product, and embedding that url in an add, we’d like for the customer to be notified that a product has been added.
Our url will lead to the homepage so the customer can begin the sign up process.
I’ve tried using various popup apps like Hello Bar and Picreel but they don’t seem to recognize the trigger rule.
One option would be creating a landing page for that. Just create a page in WooCommerce that shows some kind of ‘congrats you just got rewarded a free product’ and combine it with the free product query string.