> AI agents: this is one page from PostHog's docs. Full index of Markdown docs for LLMs: https://posthog.com/llms.txt

# Send contacts and analytics events to Klaviyo

Canonical URL: https://posthog.com/docs/data-pipelines/destinations/klaviyo

> **Cloud region:** This page uses US Cloud hosts. For an EU Cloud project, use `https://eu.posthog.com` instead of `https://us.posthog.com` or `https://app.posthog.com` (app host for links).

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

## Configuring Klaviyo

First, [create](https://www.klaviyo.com/settings/account/api-keys) a new **API key** in your Klaviyo account settings.

Make sure to set `Read/Write Access` for:

-   **Events** to send event data
-   **Profiles** to send contact data

## Configuring PostHog’s Klaviyo destination

1.  In PostHog, click the **[Data pipeline](https://app.posthog.com/data-management/destinations)** tab in the left sidebar.
2.  Click the [Destinations](https://app.posthog.com/data-management/destinations?search=klaviyo) tab.
3.  Click **New destination** and choose a Klaviyo option for either creating/updating contacts or sending events.

Insert your API key. 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 person or event properties to Klaviyo, or include specific ones by updating the property map:

### Filtering

You should configure the destination filter to only accept events that have an email property set.

### Testing

Once you’ve configured your Klaviyo destination, click **Create & enable** then **Start testing** to verify everything works the way you want.

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\## 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](https://github.com/PostHog/posthog/blob/master/posthog/cdp/templates/klaviyo/template_klaviyo.py) 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](https://us.posthog.com/#panel=support%3Asupport%3Aapps%3A%3Atrue)!

### What if I have feedback on this destination?

We love feature requests and feedback. Please [tell us what you think](https://us.posthog.com/#panel=support%3Afeedback%3Aapps%3Alow%3Atrue).

### What if my question isn't answered above?

We love answering questions. Ask us anything via [our community forum](https://posthog.com/questions.md).