SAP S4 - ODN numbering - Italy

Hi,

Can anyone advise me please...

The Italian subsidiary want to employ ODN structure for VAT. The trick is that the sub, and at group level, the same doc type is used for all types of sales: national, within EU, outside EU and for service for local and the rest.

I was wondering if a different ODN numbering to distinguish the sale to and the type of sales is in deed a fiscal/tax requirement, and if so, what would it a way around it? Creating an additional ledger?

Any help would be great!

Vito