I am trying to automate a follow up email in Mailchimp for customers who end a subscription. At that point, a webhook is sent to Zapier with that customer data. I also have the Mailchimp campaign set up.
My question here is what are the best practices to transfer that customer info and to mailchimp for the email. It seems that I would need to create a new audience for each webhook, so that the email is only sent to that one customer. This sounds inefficient.
Is there a better way?