To configure settings go to Settings >>Sync Expenses >> Shipping fees settings
In this area, you can configure how you want to record shipments in your QuickBooks and tell Unify what to do, when bill is paid/not paid.
Shipments are downloaded and displayed under the Expenses >> Shipping area on the left nav.
You can choose to create a Bill(Paid or Unpaid) in QBO and QBD.
Note: Xero is currently not supported.