To comply with Super Stream requirements, user needs to select State and Country from pre-stored list. Un-recognised manual input country code will result in mistakes in Super Stream file.
1.Physical Address could be your registered address or office address.
2.Postal Address could be same as Physical address, then you may tick the box, or if it's different, you may have to input it manually.
3.Shipping Address is the delivery address, which will be used when you generating Purchase Order.