The combination of IoT and BPM enables new possibilities for the utilization of contextual information during the modeling and execution of process models. This paper presents a novel approach to using mobile devices for process execution, opening new avenues for harnessing IoT devices and data to create value in businesses. We address shortcomings in current BPM tool support by providing a method to directly model spatial information into BPMN models, thus coupling mobile interactive interfaces with the dynamic structure of business processes, utilizing inherent location data from said devices.