Hi there, Jeff.

QuickBooks will count the sales based on the date of the sales transaction (invoice or sales receipt), and receiving of product based on the date of item receipt or purchase transactions. 

Although, you can still create an adjustment to account for the sales and items received during the time that the item is not yet recorded in QuickBooks.

Follow the steps in this article on how to enter it: Adjust your inventory quantity or value in QuickBooks Desktop.

Please add another reply below if you need anything else.