Arpan Banerjee spotted a WhatsApp extension live! It appears within search ads on mobile and allows users to directly message advertisers through direct messaging.
Bram Van der Hallen posted a screenshot showing the setup process for WhatsApp extensions. To set it up, you’ll require a WhatsApp number, and you have the option to include a starter message. This feature can also be implemented at the campaign level.
UPDATE: Google has published a help page dedicated to the Message assets.
