Hi -- we have a B2B freemium product with our sign up and sign in processes managed in a home-grown system that isn't Marketo. Then, we push the resulting signups into Marketo via API in order to market to them. The sign-up and sign-in pages both already have Munchkin cookies placed on them, however those cookies aren't associated with the email addresses collected on sign-up / sign-in. We want to make that association happen.
What's the best way to do this, in terms of how we ask our developer / engineer to store the Munchkin cookie and pass it (I assume via API?) back into Marketo associated with an email address?
The goal is to be able to track the website activity (e.g. visits to pricing page) for people who have signed up for the product, in addition to remarketing / email customization to people differently based on website activity. This will turns a large portion of our website visitors from unknown to known.
Thanks a lot.