Patent attributes
A method is disclosed. A computer may receive a request message from an access device. The computer may search a supplemental database for updated supplemental data corresponding to a real credential. The supplemental database may store the real credential, supplemental data, and the updated supplemental data. The updated supplemental data may be provided to the supplemental database in connection with authorization processing involving the real credential. The computer may receive the updated supplemental data associated with the real credential. The computer may transmit a response message to the access device including the updated supplemental data. The request message may be, as examples, an authorization request message comprising a token or a token request message comprising a token.