The billing status of my expenses is not always showing up in QuickBooks. Why not?

Expense Billing Status

Although Minute7 allows users to set the billing status of all expenses, QuickBooks only accepts and displays billing information for accounts that are reimbursable. QuickBooks regards any accounts that have the type Expense, Other Expense, or Other Current Asset as reimbursable. If you mark billing status information for expenses associated with other types of accounts, the billing status will still be recorded and displayed in Minute7, but it will not be reflected in QuickBooks.