1. We can't change the information directly for an invoice, but you can use this as work around.
2. Click on "Invoices"
3. Click on Actions
4. Click on "Create New Invoice"
5. Put the New Contact Information
6. Click on "Next Step"
7. See How a New Invoice Gets Created
8. Select the Items/Areas You'd Like to Add
9. Click on "Save & Generate Invoice"
10. This Would Be a New Invoice for a New Contact
