> ## Documentation Index
> Fetch the complete documentation index at: https://help.useclearline.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Configure a sequence

> Review sequence steps, sender setup, triggers, waits, and required fields before activation.

Outbound sequences are generated as drafts. Review every step before recipients are enrolled.

## Step types

| Step           | What to review                                                        |
| -------------- | --------------------------------------------------------------------- |
| **Start**      | Trigger signals and enrollment delay.                                 |
| **Send email** | Email sender, from name, reply-to address, subject, and message body. |
| **Send SMS**   | Phone number and message body.                                        |
| **Call**       | Phone number and call objective.                                      |
| **Wait**       | Delay before the next step.                                           |
| **End**        | Completion reason.                                                    |

## Sender requirements

Email steps require:

* A verified email domain.
* A from-address local part.
* A from name when appropriate.
* A reply-to address when replies should route somewhere specific.

SMS and call steps require:

* A workspace phone number that is assigned and active.

## Setup warnings

Clearline warns when a sequence step is incomplete. Common warnings include:

* Choose how this sequence starts.
* Complete trigger signals.
* Review enrollment delay.
* Choose a send channel.
* Choose a phone number.
* Add an email subject.
* Add an email message.
* Add an SMS message.
* Add a call objective.

<Warning>
  Do not activate a sequence with setup warnings. The campaign may skip steps or fail to send.
</Warning>

<Info>
  Screenshot placeholder: add the sequence builder with a selected email step and setup warning.
</Info>