If you would like to display a customer’s first name and last name on the invoice, you can go to the CMS Desk –> E-commerce –> Configuration –> Invoice tab and add the following macros to the template:

{% EcommerceContext.CurrentCustomer.CustomerFirstName #% }

{% EcommerceContext.CurrentCustomer.CustomerLastName #% }

Please remove the spaces before the last brackets, if you copy the strings.