Klaviyo Integration for Medusa

A Medusa plugin that integrates Klaviyo's email marketing and customer engagement platform with your Medusa store.

Table of Contents

• Features
• Prerequisites
• Installation
• Configuration
  • Configuration Options
  • Environment Variables
• Usage
  • Client-Side Integration
  • Product Feed
• Extending the Plugin
• Local Development
• License

Features

• Automatically sync customers to Klaviyo when created or updated
• Send order data to Klaviyo on order placement
• Klaviyo-compatible product feed for catalog syncing

Prerequisites

• Medusa server (v2.4.0 or higher)
• Klaviyo account with API credentials

Installation

yarn add @variablevic/klaviyo-medusa

Then add the plugin to your medusa-config.js file:

const plugins = [
  // ...
  {
    resolve: "@variablevic/klaviyo-medusa",
    options: {
      apiKey: process.env.KLAVIYO_API_KEY,
    },
  },
];

Configuration

Configuration Options

Option	Type	Description	Default
apiKey	string	Your Klaviyo API key	undefined

Environment Variables

KLAVIYO_API_KEY=your_klaviyo_api_key

Usage

Once installed and configured, the plugin will automatically:

1. Sync customer data to Klaviyo when customers are created or updated
2. Send order data to Klaviyo when orders are placed

The plugin uses Medusa event subscribers to listen for relevant events and trigger synchronization workflows.

Client-Side Integration

To properly manage marketing consent for Klaviyo in your storefront, you should set consent settings in the customer's metadata. This ensures compliance with privacy regulations by only subscribing customers who have explicitly given consent.

When collecting customer information (during registration, newsletter signup, or checkout), update the customer metadata with Klaviyo consent flags:

// Example implementation in your storefront
const updateCustomerConsent = async (
  customerId: string,
  consentSettings: {
    email_marketing: boolean;
    sms_marketing?: boolean;
    transactional_sms?: boolean;
  }
) => {
  // Call your store API endpoint that updates customer metadata
  await fetch("/store/customers/me", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
    },
    credentials: "include",
    body: JSON.stringify({
      metadata: {
        klaviyo: {
          consent: consentSettings,
        },
      },
    }),
  });
};

// Usage example
updateCustomerConsent("cus_123", {
  email_marketing: true,
  sms_marketing: false,
});

The plugin checks for these consent settings when syncing customer data to Klaviyo:

• metadata.klaviyo.consent.email_marketing: Set to true to opt the customer into email marketing
• metadata.klaviyo.consent.sms_marketing: Set to true to opt the customer into SMS marketing
• Any other consent fields specific to your implementation

Product Feed

The plugin provides a Klaviyo-compatible product feed API that allows you to sync your entire product catalog with Klaviyo. This enables product recommendations, abandoned cart emails with product details, and more.

To use the product feed in Klaviyo:

1. Access your product feed at: https://your-medusa-url.com/feeds/products/{currencyCode}

   • Replace {currencyCode} with your store's currency code (e.g., usd, eur)

2. In your Klaviyo account:

   • Go to "Content" → "Products"
   • Click "Manage Custome Catalog Sources"
   • Click "Add new source"
   • Enter your product feed URL
   • Configure sync settings according to your needs

The product feed includes essential product data:

• Product ID
• Title
• Description
• Handle/Slug
• Thumbnail and Images
• Pricing information
• Currency
• Product URL
• Categories

Extending the Plugin

You can extend the plugin by:

1. Creating custom workflows in your Medusa server that utilize the Klaviyo service
2. Adding additional event subscribers to sync more data types
3. Enhancing the data structure sent to Klaviyo

Example of using the Klaviyo service in your own code:

// Access the Klaviyo service
const klaviyoService = container.resolve("klaviyoService");

// Create an event
await klaviyoService.createEvent({
  metric: {
    name: "Custom Event",
  },
  profile: {
    email: "customer@example.com",
  },
  properties: {
    // Your custom properties
  },
});

Local Development

# Clone the repository
git clone https://github.com/your-username/klaviyo-medusa.git

# Install dependencies
cd klaviyo-medusa
yarn

# Start development server
yarn dev

License

MIT