Templates are the core for sending notifications, they are the content which is sent to users.
Depending on the channel, the content you write would be different. You can see the preview of content in real time.
"Templates" sections of the Dashboard help you create, update and view templates.
As you write template you can see the preview as you save the template using "Ctrl + S" on keyboard or "Save" button.first-letter:
When you opt to "Publish", it will create a Version. The last published version would be used to send the notification.