Andres Tarallo said:While working with the Items in the koha-MARC link I´ve noticed that the books have a price and reposition price, but is not stablished the Currency of that price. Koha "assumes" the local currency?Yes, Koha assumes the local currency. (Someone may correct me, but I believe MARC "assumes" the local currency, too.) You can manage currencies and exchange rates with Koha's "normal acquisitions" module when you place and receive orders, but the catalogue record has no way of tracking currencies and exchange rates.