This document outlines specifications for building a native iPad app using SAP, SUP, and XCode to allow offline usage of a field technician mobile app. Key points include: - The app will use a master business object (MBO) model and data change notifications (DCN) with payloads to enable offline data loading and synchronization triggered by business events in SAP. - DCNs and API calls will be buffered in intermediate tables (Z-tables) using a first-in-first-out approach between SAP and SUP. - The app will have a native interface for best user experience and performance. - A demo will showcase the data flow between SAP and SUP and