What this guide covers
Set optional campaign boundaries and use a private, expiring preview for an eligible draft builder.
Set valid boundaries
The end must be later than the start. Leave the start empty to begin when published, or the end empty to continue until paused.
Use countdown only with an end
The storefront countdown is emitted only when both the countdown option and an end instant are present.
Know the preview boundary
The seven-day tokenized on-store preview is a paid feature for valid custom and quantity-break drafts. Fixed bundles use their product page instead.