# Twilio SMS

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**Audience:** Admins, Developers, Solution Architects

**Purpose:** Explains how to connect a Twilio account to <code class="expression">space.vars.Kizen\_company\_name</code> for SMS messaging, outlines configuration requirements and limitations, and clarifies A2P 10DLC compliance responsibilities.
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## Overview

<code class="expression">space.vars.Kizen\_company\_name</code> supports SMS messaging through direct integration with Twilio. This integration allows a business to connect its own Twilio account to <code class="expression">space.vars.Kizen\_company\_name</code> and use that account to send SMS messages through:

* Bulk messaging to <code class="expression">space.vars.contacts</code>
* <code class="expression">space.vars.automation</code> <code class="expression">space.vars.workflows</code>
* Employee messaging (where applicable)

<code class="expression">space.vars.Kizen\_company\_name</code> does not provision Twilio accounts or phone numbers. Businesses must create and manage their own Twilio account. Once configured, Kizen sends SMS messages using the credentials provided by the business.

All United States–based SMS traffic is treated as A2P (Application-to-Person) messaging and must comply with the US A2P 10DLC framework. Requirements for SMS messaging outside the United States are governed by the regulations and carrier policies of the destination country.

### **What Is A2P 10DLC?**

A2P 10DLC (Application-to-Person 10-Digit Long Code) is a US carrier compliance framework that requires businesses to:

* Register their brand
* Register messaging campaigns (use cases)
* Use approved 10-digit long code phone numbers
* Associate messaging traffic with a registered campaign

For more information, read Twilio's article: [What is A2P 10DLC?](https://help.twilio.com/articles/1260800720410-What-is-A2P-10DLC-).

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## How Does Twilio Integration Work?

<code class="expression">space.vars.Kizen\_company\_name</code> uses a direct credential-based integration model.

The business provides:

* Twilio Account SID
* Twilio Auth Token
* A single Twilio phone number

<code class="expression">space.vars.Kizen\_company\_name</code> uses these credentials to call the Twilio API on behalf of the business.&#x20;

Importantly, <code class="expression">space.vars.Kizen\_company\_name</code> does not:

* Create Twilio subaccounts
* Manage Twilio Messaging Services
* Provision phone numbers
* Manage A2P registration on behalf of the business

All Twilio configuration occurs within the business’s Twilio account. The Twilio account remains fully owned and managed by the business. Learn about how to [Configure the Twilio SMS](https://developer.kizen.com/docs/integrations-and-plugins/integrations/twilio-sms/configuring-twilio-sms) integration.&#x20;

### How SMS Messages Are Delivered

When Kizen sends an SMS message, the message is submitted to Twilio using the configured integration credentials. Twilio then:

* Routes the message through its carrier network to the destination phone number.
* Provides the delivery status and error details in the **Twilio Console**.&#x20;

If a message fails to send or deliver, the cause can typically be identified in Twilio logs. SMS delivery depends on the configuration, compliance status, and messaging permissions of the connected Twilio account.

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**Note:** SMS messages sent through Twilio from <code class="expression">space.vars.Kizen\_company\_name</code> consume messaging credits associated with your license. Ensure your business has sufficient messaging credits available before sending high-volume or automated SMS messages.
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## What’s Next

After configuring Twilio:

* Set up SMS <code class="expression">space.vars.automation</code> <code class="expression">space.vars.workflows</code>.
* Configure bulk SMS campaigns.
* Ensure proper consent collection processes are in place.
* Complete A2P registration in Twilio (if sending US traffic).
* Monitor Twilio logs for delivery performance.

Before scaling SMS usage, verify compliance and registration status directly in Twilio. Read more about the Twilio integration with the topics below.

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<summary>Related Topics</summary>

* [Configuring Twilio SMS](https://developer.kizen.com/docs/integrations-and-plugins/integrations/twilio-sms/configuring-twilio-sms)
* [Sending SMS Messages in Kizen with Twilio](https://developer.kizen.com/docs/integrations-and-plugins/integrations/twilio-sms/sending-sms-messages-in-kizen-with-twilio)
* [Integrations](https://developer.kizen.com/docs/integrations-and-plugins/integrations)
* [Contacts](https://developer.kizen.com/docs/concepts)

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