Rockerbox supports currency conversions although we store revenue and spend in USD. If you are sending non-USD currency, then you must meet one of the following two conditions:
* You will always send data in a specific currency, in which case Rockerbox will hard-code the configuration to match that currency.
* You will always pass a column that indicates the currency. If you do, then you must provide the currency code for each row in ISO 4217 format.