All currency values imported into your ShipEngine account are treated as the native currency of your account's home country. For example, if your account’s home country is set to the US, all monetary values imported into ShipEngine from your selling channels & carriers or values displayed on your customs forms are considered within ShipEngine to be in USD.
Note: ShipEngine does not convert currency values imported into ShipEngine. The values are assumed to already be in the currency of your account’s home country. Therefore, you will need to handle currency conversion before importing values into ShipEngine.
Using accurate home country currency values will help make sure that shipping charges and customs fees & taxes are charged appropriately.