I guess I'm not being clear.  These are the steps we take in QuickBooks:

1 - Create Estimate

2 - Receive invoice from vendor

3 - Enter invoice from vendor - it shows billable to customer

4 - Create invoice to customer based on % complete

How do I know that the invoice from vendor is being billed, if it still shows as billable to customer since I bill customer from the estimate for % complete?  I'm not selecting the vendor invoice to bill to custom invoice so I'm not understanding how to remove that 'billable to customer'