Why a YayMail Shortcode Can Be Empty

YayMail previews are based on a selected sample order.

Check the order

• The order must have been created after the field existed.
• The customer must have supplied a value.
• The saved order must contain the field meta.
• The YayMail preview must use an order that contains that meta key.

Use the exact copied shortcode

Copy the YayMail shortcode directly from the Checkout Fields row instead of manually constructing it.