Visa Account Updater (VAU), automatically sends cardholder information to participating merchants when the card information is updated. It offers a seamless account-update process, eliminating the need for direct action on the part of the cardholder. For example, if your phone bill automatically charges to your credit card every month, without the VAU, you would need to update your card information manually in the event of a new card. With VAU, Visa will send the updated information to that merchant for you.

Additional Resources

How do I sign up for Visa Account Updater?

Who does the Visa Account Updater affect?

How long until my card information is updated with Visa Account Updater (VAU)?

How do I opt out of the Visa Account Updater?