You can send the WhatsApp template by creating a workflow rule.

Send the WhatsApp templates instantly using buttons.

Sending Whatsapp temples from Leads and Contacts modules directly.

You can see the templates inside of the record as a related list like how many templates were sent to the respected customer/client and track message delivery and read receipts.

Once the Extension is installed, you can verify the MessageBird API from the settings widget page.

You may view all of the logs that you sent to customers/clients in a separate custom module.