When using GeneXus X Evolution 2 or prior versions, it is only possible to call Web applications from Tasks within a Business Process Diagram object. In other words: it is not possible to call native applications.
However, as of GeneXus X Evolution 3 RC (codename: Tilo) it is possible to call native Smart Device applications. In addition to other benefits, a native application can be significantly faster and access specific hardware features like GPS.
To this end, a new property — Object property (BPD Task) — is now available. It allows the association of a Smart Devices object to a task. Therefore, upon executing the task, a native application will be invoked instead of a web application.
GeneXus X Evolution 3