What is Dynamics 365 Field Service?
Microsoft's field service management app — work orders, scheduling, mobile, and IoT-driven preventive maintenance.
Dynamics 365 Field Service is Microsoft's application for organisations that send technicians or engineers to a customer site to perform work. Typical customers are equipment manufacturers running maintenance contracts, facilities management firms, utilities, telecoms, medical-device service teams, and home-service businesses.
Work orders. The central object is the work order, generated from a case, an incident, a preventive maintenance schedule, or an IoT alert. It carries the customer, asset, location, products/services required, estimated time, skills needed, and a status lifecycle (Scheduled → Travelling → On site → Complete → Posted).
Scheduling. A configurable schedule board lets dispatchers drag work orders onto technicians. The optional Resource Scheduling Optimization (RSO) engine uses geocoded routes, skills, time windows, and SLA priorities to optimise the day's plan across a fleet — solving an NP-hard routing problem at scale. Schedule assistant helps with one-off bookings.
Mobile app. Technicians work from a first-class mobile app that runs on iOS and Android, online and offline. It carries the day's bookings, navigation, customer history, asset records, knowledge articles, parts inventory on the truck, and the forms to record time, parts used, photos, signatures, and inspection results.
Assets and connected devices. A hierarchical customer asset model tracks equipment installed at customer sites, with maintenance history. IoT integration through Azure IoT or Connected Field Service lets devices raise alerts that automatically generate work orders, sometimes resolving them remotely before a technician is dispatched.
Inventory and parts. Truck-stock inventory is tracked per resource. Parts consumed on a job decrement the truck and trigger replenishment; non-stock parts can be ordered to a customer site.
Customer experience. Customers receive arrival windows, real-time technician tracking, and post-job surveys. A self-service portal built with Power Pages lets them log requests.
Integrations. Field Service runs on Dataverse so it shares the Account and Contact tables with Sales and Customer Service. Billing flows out to Business Central or Finance through standard integrations.
Licensing. Per user for technicians, dispatchers, and contractors. A separate frontline worker license fits high-volume technician fleets.
Related guides
- Asset hierarchies in Dynamics 365 Field ServiceHow D365 Field Service models complex asset structures — parent-child relationships, sub-assets, asset categories, and the implications for work orders and reporting.
- Connected Field Service and IoTHow Connected Field Service integrates IoT signals with Dynamics 365 Field Service — telemetry, alerts, anomaly detection, and remote-resolution-first workflows.
- Crew jobs and multi-resource bookings in Field ServiceHow Dynamics 365 Field Service handles work that requires more than one technician — crews, requirement groups, and coordinated scheduling.
- Inspections in Dynamics 365 Field ServiceHow configurable inspection forms work in Dynamics 365 Field Service — designer, conditional logic, photos, and analysis of inspection data.
- IoT alerts and anomalies in Field ServiceHow Dynamics 365 Field Service integrates IoT signals — Connected Field Service architecture, alerts to work orders, predictive maintenance patterns, and the operational hurdles.