Chat with your diners on Whatsapp!
In each reservation page you find the Automatic messages section:
If the customer registered their phone numbers you can send a pre-set message on Whatsapp!
Click on the menu to pick out the message you need to send and then click on the Whatsapp icon:

Then you will be redirected to Whatsapp Web to confirm the sending!
❗Do not forget you won't see the Whatsapp icon if there is no number registered.
In order to access the detail of the reservation go to the reservation list and click on the green pencil next to the reservation you need to send the message to.

If you need to check out if Whatsapp service is active or not in your subscription plan go to Upgrade > Version.