Order References are extra fields you can import with Orders, namely:
Ref Order Number
Ref Order Tax
Ref Order Total
Ref Item Tax
Ref Item Tax Code
These entries are for reference and may or may not be used to replace calculated results. You might use Ref Order Number to have the order number from your web store to put on Notifications.
To enable Order Refs:
1. Go to the Company Card to the Advanced tab.
2. Click the checkbox for Enable Order References.
3. Click OK to save changes.