To change the content of any notification, you need to update the template.
Please go to WhatsApp Templates under Settings and create a new template with the updated content. Once the template is approved, simply replace the existing template in the desired notification.
For example, to update the Order Confirmation Notification: After your new template is approved, navigate to Notifications > Order Confirmation > Settings. Click on the current template name, enter your new template name, configure any desired variables, and then click "Save" to apply the changes.