Material Ledger Additional local currencies for company code

Hi Expert,

I would like to add a second local currency in the "Additional local currencies for company code" in order to have 2 currencies available for material ledger. (Material ledger is not yet activated for this company code)

The second local currency must be the group one "30". Could you please tell me wich valuation I have to choose ? 0 1 or 2.

I went on the SAP library but I didn't find something clear. I tried 1 but I have an error message...

Thanks and regards