Hi Stacey_65. Once you select a customer when creating an invoice, the CC email address will automatically populate under the customer's name. 

Here's how to do it:

1. Click on the + New button and select Invoice.
2. From the Add Customer dropdown, choose the appropriate customer.
3. Select the Cc/Bcc to enter the email address in the Cc field.
4. Fill in the necessary details for the invoice.
5. Once everything is completed, click Review and Send.
   
6. Double-check the To Cc/1 Bcc fields to ensure the email address is correct. If needed, you can make changes. You can also choose to send a copy by checking the appropriate box.
7. Click Save or Save and New to finish or start a new invoice.
   

If you have any other questions or concerns, feel free to reply below. We're happy to assist!