Showing Country Of Origin in Sales Invoice

Hi all,

We have one new request from users to show the country of origin in sales invoice. 

All the items were set to have 'NONE' as the Tracking Dimension Group. we have come out with a few ideas on how to do this but not feasible. Can anyone suggest how can we do this?

1. Set the Tracking dimension group as 'BATCH' and then indicate this information during GRN process.

Disadvantage: we have to duplicate all the items in AX.

2. Indicate the Country of origin in sales order line (under Foreign trade tab)

Disadvantage: User who posted the DA and invoice will not know whats the country of origin.