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

# SMS Workflow Step

> [!NOTE]
>
> **Creating a workflow**
>
> Follow the [workflow creation](https://docs.castled.io/engagement/workflow/create-workflow.md) documentation to complete all the steps till the Workflow step in the wizard.

### Select the SMS step

Select the 'SMS' Action from the modal
![](https://mintlify.s3-us-west-1.amazonaws.com/castled/images/wf-sms/wf-sms-1.png)

### Enter the step details

Enter the step name and click on ADD CONTENT to add the SMS message details
![](https://mintlify.s3-us-west-1.amazonaws.com/castled/images/wf-sms/wf-sms-3.png)

### Capture the SMS details

**Step 1 : Select the sender config**

**Step 2 : Enter the SMS content with required personalisation**
![](https://mintlify.s3-us-west-1.amazonaws.com/castled/images/wf-sms/wf-sms-4.png)

### Adding the step to the workflow

Once the SMS message details are captured, the Email step can be added to the workflow. At this point ADD CONTENT button changes to EDIT CONTENT which indicates the message content is already added which can now only be modified.

![](https://mintlify.s3-us-west-1.amazonaws.com/castled/images/wf-sms/wf-sms-5.png)

### SMS Step appears in the Workflow.

![](https://mintlify.s3-us-west-1.amazonaws.com/castled/images/wf-sms/wf-sms-6.png)


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