How do i cost inventory items onto a project in QB online.

Hello Trish;

Your comment 'Quickbooks will adjust inventory when you create a sales transaction' only works if your creating a detailed sales invoice for the customer.  What about projects where you have a lump sum invoice amount  that the customer sees.  They don't see each inventory item that is included on that project.   How do you adjust for all the inventory items you sold on that project then?  There does not appear to be any kind of transfer inventory to project option.  After searching online, I see other users have the same issue.  This is quite an oversite on QB online.  Please advise.  Thank you