Create and update Mailchimp contacts from analytics events

You can use your PostHog event data to create and update contacts in Mailchimp. Here's everything you need to get started.

Requirements

Using this requires either PostHog Cloud with the data pipelines add-on, or a self-hosted PostHog instance running a recent version of the Docker image.

Configuring Mailchimp

First, create a new API key in your Mailchimp account.

You'll also need your Mailchimp audience ID.

Finally, while logged into Mailchimp, check the subdomain of your account. You'll need this to configure the destination, as your Mailchimp datacenter id.

Configuring PostHog’s Mailchimp destination

  1. In PostHog, click the Data pipeline tab in the left sidebar.
  2. Click the Destinations tab.
  3. Click New destination and choose Mailchimp's Create button.

Insert your API key, audience ID, and datacenter ID. You can also choose a different property to use as the contact's email; PostHog will default to person.properties.email.

You can additionally forward all event properties to Mailchimp, or select specific ones using the merge field section.

Filtering

As you'll be collecting or updating contact emails, you should configure the destination filter to only accept events that have an email property set.

Filtering events

Testing

Once you’ve configured your Mailchimp destination, click Start testing to verify everything works the way you want.


FAQ

Is the source code for this destination available?

PostHog is open-source and so are all the destination on the platform. The source code is available on GitHub.

Who maintains this?

This is maintained by PostHog. If you have issues with it not functioning as intended, please let us know!

What if I have feedback on this destination?

We love feature requests and feedback. Please tell us what you think.

What if my question isn't answered above?

We love answering questions. Ask us anything via our community forum.

Community questions

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