When switching over to BoB2 and after running eBay Order import for the first time we need to use this SQL as a way of drawing the line between the two systems.
UPDATE
[Order]
SET
OrderStatusId = 40
FROM
[Order]
LEFT JOIN eBay_Order ON [Order].id = ebay_order.nopOrderId
WHERE
eBay_Order.SellingManagerSalesRecordNumber <= X