By using Shopify Flow's Send Marketing Email action, you can send a separate email to customers who have purchased a specific product, but please note that only customers who have opted in to receiving marketing emails will receive the email. It is safer to include important notices in the order confirmation email.
When sending emails using marketing automation, please note that marketing emails will not be sent to customers who are not registered.
It is best to include any important information you need to notify in the "order confirmation email" such as important shipping and product information.
