> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://amplified.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# SMS Compliance: Texting Laws and Rules

To send SMS notifications, companies are required to provide transparency about who is sending the texts and what type of content they're delivering.

On the other hand, users must ensure that the recipients provide consent for that interaction.

Since we've partnered with Twilio, we must adhere to their compliance guidelines and best practices as indicated here:

**>** [SMS Compliance and A2P 10DLC in the US](https://support.twilio.com/hc/en-us/articles/4408675845019-SMS-Compliance-and-A2P-10DLC-in-the-US)

**>** [Twilio and GDPR](https://support.twilio.com/hc/en-us/articles/115012662988-Twilio-and-the-General-Data-Protection-Regulation-GDPR-)

### Additional Information

> [Twilio Regulatory Guidelines by Country](https://www.twilio.com/guidelines/sms)

> [Guide to U.S. SMS Compliance](https://www.twilio.com/learn/call-and-text-marketing/guide-to-us-sms-compliance)

### Obtaining consent in Shopify

From your Shopify Admin, navigate to Settings > Checkout.

Scroll down or search for "**Consent for Marketing**" and check the box for SMS Marketing.

![](https://storage.crisp.chat/users/helpdesk/website/63d6a7555aa3c400/ba2b8418-7f33-431a-a308-411fcc_cz54wf.png)

By doing this, Shopify will include an additional opt-in section in the Checkout

![](https://storage.crisp.chat/users/helpdesk/website/cb26fde72851e800/8c8c845d-620b-4b94-be9b-14bf7d_rui0kd.png)