Skip to main content
This step-by-step guide helps you define test events and use the preview function across multiple delivery channels.

Previewing Your Notification

To preview a notification, open it in the designer and select the Preview tab.
Notification Preview

Using Test Events

When you initially open the preview tab on the demo Welcome to Courier email, there will be a generic “Welcome Example” event with an empty profile. Any variables you insert into the template will not render until you add your own custom test event or update the JSON of the Welcome Example.
New Test Event
To send a test email or SMS via the Send Tab, you need to include an email and/or phone number in the profile object of the test event JSON.
Your Test Event Needs a Complete Profile

Previewing Variables

To preview and validate any variables you’ve built into your notification, create a test event:
1

Manage Test Events

Click Manage Test Events in the Preview tab.
Test Event Variables
2

Add Your JSON Data

Add valid JSON with values in the data and/or profile objects for your variables.
Test Event Name
Related: JSON Paths and Using Substitution Variables

Creating Test Events From Logs

When you send an event to Courier, that event appears in the Data Log. You can convert logged events into test events:
  1. Open an event in the Data Log
  2. Click Event Received in the Timeline
  3. Click Save as Test Event
The test event will appear in the preview tab of the template it’s mapped to.
Create a Test Event From the Logs

Email Preview

Email is the only channel that shows a fully rendered preview as it will appear to recipients. Other channels only display variable validation.
Email preview showing rendered template

Plain Text Preview

Toggle between HTML and plain text versions of your email using the Plain Text Preview switch.
Plain Text Preview Toggle
Plain Text Preview

Sending a Test Email

When previewing an email, you can send a test to yourself or other members of your workspace.
Send a Test Email

Preview With Different Brands

If you have multiple Brand Templates, you can switch between them in the preview. Otherwise, the preview uses your Default Brand.
Select a Brand to Preview
Brand preview showing template with custom branding

SMS Preview

SMS preview showing message content