Create a card on file - an existing card that has been tokenized and stored in a digital wallet. The token is then used for payment transactions to avoid exposing sensitive data like the card's PAN and CVV.
Unless indicated otherwise, this endpoint generates a validation - a random transacation amount between 1.00 and 5.00 (later chargebacked) - created for the cardholder to approve, which requires them to log into an online banking account. The cardholder has up to 3 tries and 96 hours to input the correct amount. If the validation fails, the card is not added to the wallet.
The card can be a Pismo-issued card or an external card.