The Messages tab is used to configure texts shown in different areas in a notification. The Header / Footer, Corner and Link areas are optional.
The image shown in the notification is selected here. There are multiple options including:
The primary message shown in the notification. This is required.
Header / Footer
Secondary message shown either at the top or bottom of the notification. The position is chosen in Styles tab.
Message shown in the corner of the notification. Close button or small text is recommended to be shown here.
The page where the user is taken when the notification is clicked. Enter either complete address (e.g., https://yoursite.com/page) or
Placeholders are pieces of text which change their content dynamically when the notification is shown. More about placeholders can be read here.