Yes, you can, elizabeth.

Multiple emails can be entered in the customer’s profile, and invoices field in QuickBooks Online (QBO). Once sent and paid for, the invoice will be delivered to any attached email. Make sure to use commas (,) to separate the email addresses.

Here's how to do it:

1. In QBO, go to the Customer & leads or Sales menu on the left pane.
2. Proceed to the Customers tab.
3. Select the customer you want to update, then click the Edit button.
4. In the Email section, enter the email addresses separated with commas (,).
5. Hit Save to complete.

You can also do this directly in the Customer email section on an invoice. For more information about managing emails and customers in QBO, consider checking out these articles:

• Add and manage customers in QuickBooks Online.
• Email a sales form or report to multiple email addresses.

If you have any extra queries on this or anything else, kindly post once more or leave a comment in this thread. Please count on my assistance.