Note: This feature may not be available to you yet.
When you are visiting a business’ Facebook Shop, you can use the Message button to start a conversation with the business about a product that you’re viewing.
To view the product page or shop directly in WhatsApp, tap the link that was attached to the message you sent to the business. Learn how to share and view links to shop product pages in WhatsApp in this article.
Note: These steps only apply to Shops that have selected WhatsApp as their primary contact method.