Email Marketing Integrations

Audience: Marketing managers and developers connecting Reevix to email marketing platforms.

Reevix can trigger behavioural emails through your existing email marketing platform — automatically, based on what shoppers do (or don't do) on your site.

How It Works

When a shopper triggers a qualifying event (e.g., abandons their cart), Reevix fires a webhook payload to your email platform. Your platform then sends the email using your own templates, sender domain, and branding.

Reevix handles: Event detection, payload formatting, and secure delivery.

Your platform handles: Email sending, subscriber management, deliverability, and unsubscribe.

Supported Platforms

Setting Up Klaviyo

1. In Klaviyo → Account → Settings → API Keys, create a new Private API Key with Events: Write permission
2. In Reevix → Setup → Integrations, click Add Integration → Klaviyo
3. Paste your Klaviyo Private API Key
4. Select which events to send (see table below)
5. Click Save & Test — Reevix fires a test event; verify it appears in Klaviyo's Activity Feed

Klaviyo events sent by Reevix:

Setting Up Omnisend

1. In Omnisend → Store Settings → API Keys, copy your API Key
2. In Reevix → Setup → Integrations, click Add Integration → Omnisend
3. Paste your Omnisend API Key
4. Select events
5. Click Save & Test

Omnisend uses the same event names as above. Events appear in Omnisend → Reports → Automation Activity.

Setting Up Mailchimp

1. In Mailchimp → Account → Extras → API Keys, click Create A Key
2. In Reevix → Setup → Integrations, click Add Integration → Mailchimp
3. Paste your Mailchimp API Key
4. Select your Audience (list) from the dropdown — Reevix will only trigger automations for subscribers in this audience
5. Select events
6. Click Save & Test

Mailchimp events trigger Customer Journeys (Mailchimp's automation builder). Create a journey starting with the relevant Reevix event tag.

Custom Webhook

For any platform not listed above:

1. In Reevix → Setup → Integrations, click Add Integration → Custom Webhook
2. Enter your Endpoint URL (must accept HTTP POST with JSON body)
3. Choose your authentication method:

- Bearer Token — Reevix adds Authorization: Bearer <token> header

- HMAC Signature — Reevix signs the payload with a shared secret; verify on your end

- None — No authentication (only for internal endpoints behind a firewall)

1. Select events
2. Click Save & Test

Webhook Payload Format

{
  "event": "cart_abandoned",
  "timestamp": "2026-04-28T14:32:00Z",
  "storeId": "sto_abc123",
  "session": {
    "id": "sess_xyz789",
    "email": "shopper@example.com",
    "userId": "usr_456"
  },
  "cart": {
    "subtotal": 149.99,
    "currency": "USD",
    "items": [
      {
        "productId": "prod_001",
        "title": "Classic Wool Sweater",
        "price": 89.99,
        "quantity": 1,
        "imageUrl": "https://yourstore.com/products/sweater.jpg",
        "productUrl": "https://yourstore.com/products/sweater"
      }
    ]
  },
  "metadata": {
    "behaviorState": "evaluating",
    "sessionDuration": 312,
    "pageCount": 8
  }
}

HMAC Verification (Node.js example)

const crypto = require('crypto')

function verifyReevixWebhook(payload, signature, secret) {
  const expected = crypto
    .createHmac('sha256', secret)
    .update(payload)
    .digest('hex')
  return crypto.timingSafeEqual(
    Buffer.from(`sha256=${expected}`),
    Buffer.from(signature)
  )
}

Testing Integrations

Each integration card has a Send Test Event button. Click it to send a synthetic cart_abandoned event to your platform. Verify it arrives before going live.

Event Delay Configuration

You can customise these delays in the integration settings.