> ## Documentation Index
> Fetch the complete documentation index at: https://docs.arnio.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Contacts

> Manage your customer contacts and profiles.

# Contacts

Manage your customer contacts and their profiles in Arnio.

## Overview

Contacts are the foundation of your customer relationships. Each contact has a profile where information about subscription statuses, message history, and custom properties are stored.

## Import contacts

### Import contacts with the API

[See the full article →](/get-started/introduction)

1. Use the API endpoints to import contacts programmatically
2. Ensure each contact includes at least one identifier like a phone number or email
3. Update subscription status for each contact based on their opt-in preferences
4. Add contacts to lists or segments during or after import

### Import contacts by integrating with external services

[See the full article →](/core-concepts/integrations)

1. Navigate to **Integrations** in your account settings
2. Find and install your integration (e.g., CRM, e-commerce platforms)
3. Once installed, contact data is automatically synced

## Contact profiles

Each contact profile includes:

* **Contact information**: Phone number, email, name
* **Subscription status**: Opt-in preferences for each channel
* **Message history**: All messages sent and received
* **Custom properties**: Additional data specific to your business

**See also:**

* [Lists and Segments →](/audience/lists-segments)
* [Integrations →](/core-concepts/integrations)