REST API Behaviour Tied to Activity Status

For integrations and development scenarios, the availability of real-time location data is strictly governed by the current status of the service activity. The Where is My Technician (WMT) REST API is designed to return geographic coordinates only when the technician has set a work-related status. If the technician hasn't indicated they are en route—i.e., hasn't “started the route”—the WMT interface cannot fetch or display live location data. For more information, see Oracle Documentation.

The requirement to use the Start My Route action is uniformly enforced across the WMT web interface and its underlying REST API. This action is the necessary trigger to change the activity status, thereby enabling live tracking and ETA data availability.

Summary: Why 'Start My Route' Is Mandatory

Function	Requirement
Enable En Route Status	Mobile worker must set this status to trigger live tracking and ETA calculation. For more information, see En Route Status and Enable the En Route Support feature.
Trigger Real-Time Tracking	Without it, WMT will not show the mobile worker's position or the travel track (’On the Way’).
REST API Data Availability	Coordinates are only returned by the API when the activity status is On the Way or Started. For more information, see REST API for Oracle Fusion Field Service Cloud Service.