Our Constant Contact integration is no longer available for new installations. This reference details the data synced through the integration for existing customers. If you are a new customer, read our guide on how to migrate from Constant Contact manually .

Learn how to import your contacts to Klaviyo from a previous email service provider (ESP) or customer relationship management platform (CRM). Klaviyo offers built-in integrations to sync data from certain ESPs and CRMs.

Learn how to integrate Campaign Monitor with Klaviyo in order to sync your Campaign Monitor lists and contacts and track Campaign Monitor analytics in Klaviyo.

Only Klaviyo account owners or admins can perform a full migration from Constant Contact.

Learn how to migrate from Hubspot to Klaviyo. While Klaviyo does not have a built-in integration with HubSpot, you can export your data from HubSpot and upload it into Klaviyo.

Learn how to migrate from Listrak to Klaviyo. While Klaviyo does not have a built-in integration with Listrak, you can export your data from Listrak and upload it into Klaviyo. Listrak contacts and related data are exported from Listrak in CSV format. CSV files can be easily formatted to ensure successful import to a Klaviyo list. While this is not a complic

Learn how to use Klaviyo’s Mailchimp integration to migrate your Mailchimp data to Klaviyo.

Learn how to migrate from Sailthru to Klaviyo. While Klaviyo does not have a built-in integration with Sailthru, you can migrate your data over by exporting it from Sailthru and importing it into Klaviyo. Additionally, when you integrate your ecommerce store with Klaviyo, you will be able to trigger emails based on a browser's on site activities.

Learn how to integrate Salesforce Marketing Cloud (previously ExactTarget) with Klaviyo. This integration is designed to help you move from Salesforce Marketing Cloud to Klaviyo. We don't recommend using both platforms at once other than during the interim period as you make the switch.

Learn how to migrate from Yotpo email and SMS to Klaviyo via Klaviyo’s Yotpo Email & SMS Migration integration. This integration syncs profiles from Yotpo along with email and SMS subscriptions. Additionally, learn best practices and next steps when migrating.

Learn how to migrate from another email service provider to Klaviyo. If you are moving from an email service provider (ESP) like Mailchimp or Constant Contact, Klaviyo should fully replace any other email platform you might use. While we do offer integrations with other ESPs, these are meant for one-time use to migrate your contacts into your new Klaviyo acc

Learn how to create a custom Zapier webhook to send SMS consent to Klaviyo. You can easily modify the instructions in this guide to send email consent as well.

Learn about the areas of Klaviyo that need to be updated when you switch from one ecommerce platform to another. It is completely possible to switch ecommerce platforms while keeping the same Klaviyo account, but there are some important steps to keep in mind to ensure that your sign-up forms, flows, and other Klaviyo features continue to perform as expected

Learn how to integrate Zendesk with Klaviyo in order to improve your support experience for customers. This integration allows you to:

This guide will walk you through migrating your data from Drip to Klaviyo. While Klaviyo does not have a built-in integration with Drip, you can export your data from Drip and upload it into Klaviyo.