Problem: I would like to send an automatic email notification to the Customer Email, but the placeholder does not seem to work in the recipient settings of my automatic notification.

Solution: Placeholders like %%CUSTOMER_EMAIL%% cannot be used outside of the subject and message areas of the automatic email notification. To send a notification to a specific email, you can insert an email custom field in the Form and choose that field as the recipient, or use a generic field to hold a User ID, or set up some custom implementation using the Forms API to programmatically select a recipient.