maybe my question wasn't clearly written, sorry
I meant how are you planning to handle different exchange operation types like on this example situation:
when you send or receive international transfers in Brazil and you exchange it for BRL you need to declare what is the nature of the exchange operation you are doing
if you are receiving for services that you provided, if it's a transfer from an account you own, if it's a donation, the list goes on
this is important because of the different treatment each of them receive on compliance, risk and even fees