This document provides an overview of how to begin using Digital Wallets on the ai Gateway. The context of this document is focussed purely on merchants that are integrating to the Gateway using the Direct API. We will be covering the additional fields and their data values required to process a transaction using an Digital Wallet and any changes to the expected values of existing fields. Upon completion of review of this document you should have the knowledge required to begin implementing the required changes and ultimately start transaction using supported Digital Wallets.