Abstract: Systems and methods are provided that enable purchase and adjustment transactions using a visual indicium displayed on a mobile device. In some embodiments, these indicia are in the form of bar codes, include alias information, and do not include an account number associated with a payment account. A mobile device receives first user input, displays the indicium to a merchant device. The merchant device scans the indicium and sends a transaction request including the alias information to a payment network. The payment network determines an appropriate financial institution for processing the transaction, and sends the transaction request to the appropriate financial institution. Based on the result, the payment network sends an approval to the merchant device. Additionally, a mobile processor system sends new alias information to the mobile device for use in a next transaction.

Abstract: Systems and methods are provided for processing cardless financial transactions at transaction devices such as Automated Teller Machines. An example method comprises receiving a transaction request including at least one transaction parameter and receiving a substitute value representing an account for processing the transaction request. The substitute value is distinct from an account number associated with the account. The method further comprises sending the at least one transaction parameter and the substitute value to a payment network associated with the substitute value and completing the transaction request. A second method comprises receiving a transaction request with at least one transaction parameter and a substitute value. The second method further comprises determining account credentials associated with the substitute value using the account credentials.

Abstract: Systems and methods are provided that enable purchase and adjustment transactions using a visual indicium displayed on a mobile device. In some embodiments, these indicia are in the form of bar codes, include alias information, and do not include an account number associated with a payment account. A mobile device receives first user input, displays the indicium to a merchant device. The merchant device scans the indicium and sends a transaction request including the alias information to a payment network. The payment network determines an appropriate financial institution for processing the transaction, and sends the transaction request to the appropriate financial institution. Based on the result, the payment network sends an approval to the merchant device. Additionally, a mobile processor system sends new alias information to the mobile device for use in a next transaction.