Shopify Notifications Setup
Log in to your Shopfy administration, go to Settings / Notifications at the end of this page you will find the section Webhook click the “Create Webhook” button. Select from the events “Order Update”, Format “JSON”,
paste the Sendapp url in the URL field, select Webhook API version 2022-4 (Latest) from the menu.
To confirm the sending of notifications you have to click the Save button and you are immediately ready to send WhatsApp notifications from your Store.