Hi @riggsba
When an order completed (after the thank you message appears on the checkout page), then WooCommerce will automatically send order details through an email to you as the store owner and the customer.
But keep in mind that the email trigger is the order complete.
If you show a WhatsApp button on a single product page, shop page/loop, and Cart page (including through a shortcode and floating button), WooCommerce will not send an email when a customer clicks on the WhatsApp button on the respective page.
The plugin doesn’t change anything what WooCommerce normally does. It only extends some features.
One note from me, when a customer completes their order, WooCommerce will send an email to you and the customer, and with OneClick Chat to Order, you can also show a WhatsApp button on the thank you page (after order completion), with which that customer can click and send their order details directly to you via WhatsApp.
This video explains more about it https://www.youtube.com/watch?v=9wpiFfSOjsU
Hope that helps.
Thank you.