Card use in Brazil is relatively high and Brazilians rarely pay for anything outright. Most online transactions are paid in installments. Cash-based methods such as Boleto Bancário are popular too, and will give businesses access to Brazilians without credit cards.
To offer payments in installments, you must be connected to local Brazilian acquirers. Many Brazilian cards are also limited to domestic transactions only, which also require a connection to a local acquirer. Adyen has been acting as an acquirer in Brazil for Visa and Mastercard since 2016, and delivers a solution with the same service levels and functionalities made available in other markets. In addition to that Adyen is connected to all major Brazilian acquirers to process minor schemes (Cielo, Rede and Santander/GetNet).
A high proportion of the population in Mexico remains unbanked. Credit card penetration is very low and most Mexican shoppers prefer to pay using cash-based methods such as convenience store payments.
In Mexico, many domestic cards are not enabled for cross-border purchases and use of a local acquirer is recommended to increase authorization rates. Adyen has local acquiring capabilities in Mexico, so you can process transactions with credit and debit cards issued by any bank.