In Magento, you can see that the order has come from Omnivore in the Payment Information section and the marketplace the order has come from is shown in the Comments History section.
Note: All orders are created as Guests, i.e not logged in. For the purposes of Magento, we can't pretend it's PayPal (or some other payment method) because it's not been processed through Magento's PayPal gateway implementation.
To see the marketplace the order has come from:
