# Send SMS

Available on **OUTBOUND** bots only.

Using the Send SMS action block, you can send an SMS message proactively to your contact.

Most commonly used for use cases like:

* Sending promotional message
* Feedback surveys
* Appointment confirmation

<figure><img src="/files/6j7yhtt5DdVeGdyeiJh5" alt=""><figcaption></figcaption></figure>

To configure the 'Send SMS' action block:

1. Add the 'Send SMS' action block on the canvas
2. Choose the number you want to send the SMS using the 'From' field.
3. Choose the variable containing the contact's phone number in the 'To' field
4. Add the message that you want to send

SMS texts have a limit of **160 characters**.

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