The type of a currency is identified using ISO-4217. This is a three-letter string like USD or EUR. The value of a currency is represented in micros. For USD, $5.50 is encoded as 5.50*1e6, or 5,500,000. To represent a “whole value”, you need to multiply the local micro by 1e6 (1_000_000) for all currencies.The Ads API recognizes official currencies of all countries where the X SMB Ads product is available. For a complete list of these countries, please click here.Most currencies have a “precision” of two (like USD: $1.23).