> 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/text/text-automations/text-keyword-automations.md).

# Text Keyword Automations

Send an automatic reply and optional tag when someone texts a keyword to your Cymbal number.

Keyword automations send a reply when someone texts a keyword to your number. You can also tag everyone who texts in a specific keyword.

## Reserved opt-in keywords

These built-in opt-in words are reserved and **can't** be used as custom keyword automations: `sub`, `subscribe`, `start`, `yes`, `unstop`, `resume`, `go`, `save`.

When someone texts one of those, Cymbal resubscribes them and replies with [Welcome SMS](https://docs.cymbal.co/help/text/sms-best-practices/welcome-sms) (New Subscriber Sms) only — not a custom Automated response. Matching is the whole message, trimmed and lowercased.

## How to set up a keyword automation

{% stepper %}
{% step %}
Go to the **Text** → [Campaigns](https://manager.cymbal.co/text) tab.
{% endstep %}

{% step %}
Select one of the existing keyword automations, or select **Create new**.
{% endstep %}

{% step %}
In the editor, select the **Trigger** tab and add the keywords people can text to get a message. To tag people who text a keyword, choose an existing tag from the dropdown or create a new one.
{% endstep %}

{% step %}
Write the message people receive after they text the keyword. Type `/` to add dynamic text.
{% endstep %}

{% step %}
When you're ready, select **Turn on** in the top right corner.
{% endstep %}
{% endstepper %}

To let people text your keyword by scanning a QR code, see [Keyword Autofill](https://docs.cymbal.co/help/text/text-automations/text-keyword-automations/keyword-autofill).

## Related

* [Welcome SMS](https://docs.cymbal.co/help/text/sms-best-practices/welcome-sms)
* [Keyword Autofill](https://docs.cymbal.co/help/text/text-automations/text-keyword-automations/keyword-autofill)
* [Text Automations](https://docs.cymbal.co/help/text/text-automations)
* [Instagram DM keyword automations](https://docs.cymbal.co/help/social/instagram-dm-keyword-automations)