> For the complete documentation index, see [llms.txt](https://docs.cymbal.co/help/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cymbal.co/help/sms.md).

# SMS

- [SMS Best Practices](https://docs.cymbal.co/help/sms/sms-best-practices.md)
- [How to Launch an Effective SMS Campaign](https://docs.cymbal.co/help/sms/sms-best-practices/how-to-launch-an-effective-sms-campaign.md)
- [Why Include your Sender ID](https://docs.cymbal.co/help/sms/sms-best-practices/why-include-your-sender-id.md): This page describes why including your sender ID is key for SMS blasts
- [Why Include "Reply STOP to opt-out"](https://docs.cymbal.co/help/sms/sms-best-practices/why-include-reply-stop-to-opt-out.md): This page describes why including opt out langauge is key for SMS blasts
- [SMS Automations](https://docs.cymbal.co/help/sms/sms-automations.md): This page talks about how to setup SMS automations and best practices
- [SMS Keyword Automations](https://docs.cymbal.co/help/sms/sms-automations/sms-keyword-automations.md): This page shows you how to use the keyword automation function for SMS
- [Keyword Autofill](https://docs.cymbal.co/help/sms/sms-automations/sms-keyword-automations/keyword-autofill.md): This page shows you how to setup a QR code so that people can scan it and it will autofill their messages with the desired keyword
- [Reply Forwarding](https://docs.cymbal.co/help/sms/reply-forwarding.md): This page will show you how to setup reply forwarding in Cymbal
- [How Revenue Attribution works for SMS](https://docs.cymbal.co/help/sms/how-revenue-attribution-works-for-sms.md): This page describes how Cymbal calculates revenue attribution for SMS
- [Carrier rate limiting on SMS campaigns](https://docs.cymbal.co/help/sms/carrier-rate-limiting-on-sms-campaigns.md): This page describes why carrier rate limiting happens and how to reduce it
- [Troubleshooting](https://docs.cymbal.co/help/sms/troubleshooting.md)
- [Total contacts have decreased](https://docs.cymbal.co/help/sms/troubleshooting/total-contacts-have-decreased.md): If you are seeing less contacts in your text recipients than you were used to seeing, please review the troubleshooting steps below
- [Cancel an Automation Send](https://docs.cymbal.co/help/sms/troubleshooting/cancel-an-automation-send.md): If you'd like to cancel an automation before it sends out, please review the troubleshooting steps below