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

# Message

> Compose the push notification content and send a test message.

## Message Fields

Your notification can include the following fields:

* **Title** (required): The main heading of your notification.
  Example: "You're a Power User!"

* **Body** (recommended): The main message text.
  Example: "With over 15 sessions and 10 friends, you've earned exclusive perks."

* **Image URL** (optional): A URL to an image that will appear in the notification.
  Example: "[https://example.com/image.png](https://example.com/image.png)"

* **Open URL / Deep Link** (optional): Where users go when they tap the notification.
  Example: "yourapp\://rewards" or "[https://yourwebsite.com/page](https://yourwebsite.com/page)"

### Best Practices

Keep these tips in mind when composing your message:

* Always use HTTPS for images and links.
* Keep titles short and clear. Mobile platforms may cut off longer text.
* If you're using deep links, make sure your app can handle the scheme or universal link.

## Personalization

You can personalize messages using template variables with double braces.

Example: `Hello {{ user.name | default: "there" }}!`

For API-triggered campaigns, you can also include values from custom data. Learn more in the [Personalization](../personalization/personalization) guide.

## Send Test

Before launching your campaign, you can send a test message to one or more devices.

Test messages ignore your audience and schedule settings - they only test the message content itself.

Once the message looks good, you can move on to setting up your audience and launching the campaign.