When a transfer is made, the IBAN alphanumeric code (International Bank Account Number) is always used. As its name indicates, it is used to identify any bank account in the countries that use it. It has its origins in the EU, but many other countries such as the USA, Canada and much of South America have already joined. As a result, the IBAN system is used all over the world.
Why was it created? Previously, international payments posed certain problems for users. Each country had its own conditions and rates. Sometimes, it was also difficult to know what country a certain bank account was in. With the arrival of this code, financial institutions were able to automate their transfers.
The function of the IBAN is similar to the euro's, since it allows transactions to be made as if they were in the same country. This eliminates the bureaucracy and the misunderstandings that used to occur, streamlining the process.