Migration Guide

Mailchimp to Klaviyo

Step-by-step guide to migrate from Mailchimp to Klaviyo in 2026. Everything you need for a smooth switch.

Medium difficultyPT4H6 steps

Quick Answer

How to migrate from Mailchimp to Klaviyo: Medium difficulty, PT4H, 6 steps. Migrating from Mailchimp to Klaviyo is a common transition in the marketing space.

Overview

Migrating from Mailchimp to Klaviyo is a common transition in the marketing space. This guide covers every step of the process, from exporting your Mailchimp data to getting your team fully productive in Klaviyo. Whether you're switching for better features, pricing, or team fit, a well-planned migration minimizes disruption.

Before You Start

Before starting your migration, audit your Mailchimp usage thoroughly. Document active projects, key integrations, custom configurations, and team workflows. Clean up unused data to keep your Klaviyo workspace organized from day one. Notify your team at least a week in advance and designate migration leads for each department.

How to Migrate from Mailchimp to Klaviyo

1

Export data from Mailchimp

PT30M

Use Mailchimp's built-in export tools to download your data. Most platforms offer CSV, JSON, or API-based export options.

2

Set up your Klaviyo account

PT30M

Create your Klaviyo workspace, configure settings, and set up the organizational structure to mirror your current setup.

3

Map features and data fields

PT30M

Review how Mailchimp concepts translate to Klaviyo. Document the mapping for custom fields, statuses, and workflows.

4

Import data into Klaviyo

PT45M

Use Klaviyo's import tools, CSV upload, or a third-party migration service to bring your data from Mailchimp.

5

Recreate automations and integrations

PT45M

Review your Mailchimp automations, integrations, and custom workflows. Rebuild them using Klaviyo's native automation features.

6

Verify data and train your team

PT30M

Check that all critical data transferred correctly. Provide training sessions and documentation to help your team adjust to Klaviyo.

Feature Mapping: Mailchimp vs Klaviyo

FeatureMailchimpKlaviyo
CampaignsMailchimp CampaignsKlaviyo Campaigns
ListsMailchimp ListsKlaviyo Lists
AutomationsMailchimp AutomationsKlaviyo Automations
AnalyticsMailchimp AnalyticsKlaviyo Analytics
TemplatesMailchimp TemplatesKlaviyo Templates

Data Transfer Checklist

Transfers successfully

  • Contact lists
  • Email templates (partial)
  • Subscriber tags
  • Segmentation rules

Needs manual work

  • Campaign analytics history
  • A/B test results
  • Automation sequences
  • Landing pages

After Migration

After migrating, keep Mailchimp accessible for at least 30 days as a reference. Monitor team adoption and gather feedback on the Klaviyo experience. Set up a dedicated help channel for migration questions. Track key productivity metrics to ensure the switch is successful.

Our Verdict

The migration from Mailchimp to Klaviyo is manageable with proper planning. The biggest factor in a successful switch is thorough preparation and giving your team adequate time to adjust to the new platform.

Mailchimp to Klaviyo Migration FAQ

A typical migration takes 3-5 hours for the technical setup. Larger organizations with extensive data may need additional time. We recommend a 1-2 week transition period for full team adoption.
Most core data can be transferred using export/import tools. However, some platform-specific features like custom automations and plugin data may need to be manually recreated in Klaviyo.
Yes, we recommend running both tools in parallel for 1-2 weeks. This gives your team time to adjust and ensures nothing is missed during the transition.
Both are strong options in the marketing space. Klaviyo may offer different strengths depending on your team's needs. We recommend evaluating your specific requirements and taking advantage of any free trial before committing.

Paying for Mailchimp or Klaviyo? StackTidy catches them the moment you're charged — and flags them if your team stops using them.

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Track Your Migration with StackTidy

Switching from Mailchimp to Klaviyo? StackTidy automatically detects both subscriptions so you know exactly when to cancel the old one.

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