Now it is very important to understand cross-border payments, because statistically they are the most frequent payments for business, so it is important to have a decent theoretical base, so I advise you to study the information on https://dashdevs.com/blog/top-cross-border-payments-companies/ where it is just described about all these payments, how to make them, how to distinguish them from others and what are the peculiarities. I think it is important to know.
Andrew Zarudnyi