Preheader Text appears on mobile devices and some popular email clients as the preview text in list views of emails. This piece of visible text gives a guest a better intimation of what the email may contain. Making this content contextual and useful helps in increasing the email open rate.
The text you enter here will replace the {{preheader_text}} tag in your HTML layout. Limit this to 40-50 characters only.
If you do not intend to use the layout, then feel free to leave this field blank and include the relevant preheader text in your notification content.
If Email Editor is used, the Preheader text should be set inside the Email Editor using a Text box at the top of the layout.