---
title: "Twilio Segment Connector"
description: "Complete Twilio Segment integration guide for syncing customer data, events, and audience segments with Brevo through Tajo."
url: https://tajo.io/docs/connectors/custom/segment/
markdown: https://tajo.io/docs/connectors/custom/segment.md
lang: en-US
robots: noindex
---

# Twilio Segment Connector

Connector status: Planned Not built yet. Tajo does not run this connector today.

| Source field | Destination field | Sample value |
| --- | --- | --- |
| `record.id` | `source_id` | `record_1042` |
| `record.updated_at` | `updated_at` | `2026-10-18T08:00:00Z` |
| `record.value` | `value` | `sample_value` |

Connect Twilio Segment to Brevo through Tajo to unify your customer data pipeline, route events from any source to Brevo, and leverage Segment’s identity resolution for richer marketing automation.

## Overview

| Property | Value |
| --- | --- |
| **Platform** | Twilio Segment |
| **Category** | Data Platform (Custom) |
| **Setup Complexity** | Medium |
| **Official Integration** | No |
| **Data Synced** | Events, Customers, Traits, Audiences |
| **Available Skills** | 8 |

## Features

- **Universal data collection** - Collect events from websites, mobile apps, and servers via Segment SDKs
- **Source routing** - Route data from 400+ sources into Brevo through Tajo
- **Identity resolution** - Merge anonymous and known user profiles automatically
- **Audience sync** - Send Segment computed traits and audiences to Brevo lists
- **Event streaming** - Real-time event forwarding via Segment’s Connections framework
- **Reverse ETL** - Sync warehouse data back to Brevo using Segment Reverse ETL
- **Schema enforcement** - Validate event schemas with Segment Protocols before syncing

## Prerequisites

Before you begin, ensure you have:

1. A Twilio Segment workspace with a source configured
2. Your Segment Write Key for the source
3. A Brevo account with API access
4. A Tajo account with API credentials

## Authentication

### Segment Write Key

Segment authenticates sources using a Write Key, which is a unique identifier tied to each source.

```javascript
// Analytics.js initialization with Write Key
analytics.load("YOUR_SEGMENT_WRITE_KEY");
```

### Tajo API Token

Configure the Tajo connector with your credentials:

```bash
tajo connectors install segment \
  --write-key $SEGMENT_WRITE_KEY \
  --workspace-slug your-workspace \
  --brevo-api-key $BREVO_API_KEY
```

## Configuration

### Basic Setup

```yaml
connectors:
  segment:
    enabled: true
    write_key: "your-segment-write-key"
    data_region: "us"  # or "eu" for EU workspace

    # Data sync options
    sync:
      identify: true
      track: true
      page: true
      group: false

    # Brevo list assignment
    lists:
      all_contacts: 5
      active_users: 6
      high_value: 7
```

### Event Mapping

Map Segment track events to Brevo event types:

```yaml
event_mapping:
  # Segment event -> Brevo event
  "Order Completed": "order_completed"
  "Product Viewed": "product_viewed"
  "Cart Updated": "cart_updated"
  "Signed Up": "customer_created"
  "Checkout Started": "checkout_started"

  # Custom events
  "Feature Used": "feature_used"
  "Plan Upgraded": "plan_upgraded"
```

### Trait Mapping

Map Segment identify traits to Brevo contact attributes:

```yaml
trait_mapping:
  email: email
  firstName: FIRSTNAME
  lastName: LASTNAME
  phone: SMS
  plan: PLAN_TYPE
  company: COMPANY
  createdAt: SIGNUP_DATE
  lifetimeValue: LTV
```

## API Endpoints

| Method | Endpoint | Description |
| --- | --- | --- |
| `POST` | `/v1/identify` | Identify a user with traits |
| `POST` | `/v1/track` | Track an event |
| `POST` | `/v1/page` | Record a page view |
| `POST` | `/v1/screen` | Record a screen view |
| `POST` | `/v1/group` | Associate a user with a group |
| `POST` | `/v1/alias` | Merge two user identities |
| `POST` | `/v1/batch` | Send multiple messages in a batch |
| `POST` | `/v1/import` | Bulk import historical data |

## Code Examples

### Initialize Segment with Tajo Destination

```javascript
import { TajoClient } from '@tajo/sdk';

const tajo = new TajoClient({
  apiKey: process.env.TAJO_API_KEY,
  brevoApiKey: process.env.BREVO_API_KEY
});

// Connect Segment source
await tajo.connectors.connect('segment', {
  writeKey: process.env.SEGMENT_WRITE_KEY,
  workspaceSlug: 'your-workspace'
});
```

### Track Events via Segment

```javascript
// Identify a user - syncs to Brevo contacts
analytics.identify("user_123", {
  email: "jane@example.com",
  firstName: "Jane",
  lastName: "Kim",
  plan: "premium",
  lifetimeValue: 450.00
});

// Track an event - forwards to Brevo
analytics.track("Order Completed", {
  orderId: "ORD-1234",
  revenue: 89.99,
  currency: "USD",
  products: [
    { id: "SKU-001", name: "Widget", price: 89.99 }
  ]
});

// Page view tracking
analytics.page("Pricing", {
  title: "Pricing - Tajo",
  url: "https://tajo.io/pricing"
});
```

### Server-Side Event Forwarding (Node.js)

```javascript
const Analytics = require('analytics-node');
const analytics = new Analytics(process.env.SEGMENT_WRITE_KEY);

// Batch identify users from your database
const users = await db.query('SELECT * FROM users WHERE updated_at > $1', [lastSync]);

for (const user of users) {
  analytics.identify({
    userId: user.id,
    traits: {
      email: user.email,
      firstName: user.first_name,
      lastName: user.last_name,
      totalOrders: user.order_count,
      lifetimeValue: user.ltv
    }
  });
}

// Flush the queue
await analytics.flush();
```

## Rate Limits

| Tier | Limit | Window |
| --- | --- | --- |
| **Free** | 1,000 events/sec | Per source |
| **Team** | 10,000 events/sec | Per source |
| **Business** | Custom | Per workspace |
| **Batch API** | 500 KB max | Per request |
| **Max batch size** | 100 events | Per batch call |

Batch Size Limits

Each batch request can contain a maximum of 100 events and must not exceed 500 KB. For large historical imports, use the Segment Bulk Import API.

## Troubleshooting

| Issue | Cause | Solution |
| --- | --- | --- |
| Events not appearing in Brevo | Destination not enabled | Enable Tajo destination in Segment |
| User traits not syncing | Missing email identifier | Ensure `email` trait is included in identify calls |
| Duplicate contacts | Multiple anonymous IDs | Implement proper `alias` calls for identity merge |
| Events delayed | High volume queue | Check Segment’s event delivery dashboard |
| Schema violations | Unplanned events | Review Segment Protocols tracking plan |
| 429 rate limit errors | Too many requests | Implement batching or reduce event frequency |

## Best Practices

1. **Use identify before track** - Always call `identify` before `track` to ensure events are attributed to the correct user
2. **Implement a tracking plan** - Use Segment Protocols to enforce event schemas
3. **Batch server-side calls** - Use the batch API for server-side integrations to reduce HTTP overhead
4. **Map traits explicitly** - Define trait-to-attribute mappings rather than relying on defaults
5. **Use Segment Functions** - Transform events in-flight before they reach Brevo
6. **Monitor event delivery** - Check Segment’s Event Delivery dashboard for failed events
7. **Set up Replay** - Enable Segment Replay for re-processing historical events

## Security

- **TLS encryption** - All data transmitted over HTTPS/TLS 1.2+
- **Write Key isolation** - Each source has its own Write Key
- **GDPR compliance** - Segment supports data deletion and suppression requests
- **SOC 2 Type II** - Segment is SOC 2 Type II certified
- **Regional data hosting** - EU workspace option for data residency compliance

## Related Resources

- [Amplitude Connector](https://tajo.io/docs/connectors/custom/amplitude)
- [Mixpanel Connector](https://tajo.io/docs/connectors/custom/mixpanel)
- [Customer Sync Skill](https://tajo.io/docs/skills/data-sync/customer-sync)
- [Brevo Events API](https://tajo.io/docs/events-engagement/create-event)

## Open-Source Implementation Map

No official open-source repository was found in the current Tajo connector catalog for Segment. Keep this page focused on the verified public API contract and vendor documentation until an official schema, SDK, MCP server, or public integration repository is available.

### Tajo Revamp Checklist

- Verify authentication and scope requirements against the vendor documentation before each connector release.
- Document primary sync objects, external IDs, pagination strategy, and rate limits explicitly.
- Add smoke tests from public API examples rather than undocumented behavior.
- Capture webhook signature verification and replay protection when the vendor supports webhooks.
- Record gaps where no official public repository or schema exists so future maintainers know what still needs source-backed validation.