Abstract: Various systems and methods are disclosed. For example, one method may include identifying at a sponsor service that a new user has been added to a user database operated by a third-party server; retrieving user data associated with the new user from the user database, the user data including a user communication address; creating a unique link for the new user that uniquely identifies the new user, the unique link directing the new user to a graphical page with data entry fields; communicating the unique link to the user communication address via a communication channel; receiving data entry information from the graphical page, the data entry information including data associated with the unique link; and validating that the data entry information is from the new user based on the data associated with the unique link.