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Before you buy: crew size and how you bill
Field Service is a serious platform, and it pays off when scheduling is genuinely hard: many technicians with different licenses, emergency calls breaking into planned maintenance, and customers with contracts that promise response times. A company with three trucks and one dispatcher who knows everyone's schedule rarely needs it.
The second question is billing. Service work billed per call or per contract fits Field Service well. Construction-style progress billing with retainage and schedule of values belongs in the accounting system, typically Business Central with project accounting, while Field Service handles the service side of the business.
A service call, from phone ring to invoice
- 1
Log the request
The call taker creates a work order against the customer's site and the asset that failed, picking an incident type such as no heat or tripped breaker. The incident type fills in the usual tasks, parts and estimated duration.
- 2
Schedule the right person
The dispatcher uses the schedule board to see who has the skill, is nearby and is free. Resource scheduling optimization, an optional add-in, can suggest or book the schedule automatically.
- 3
Work the job on site
The technician opens the job in the mobile app, follows the task checklist, records parts used from the truck, takes photos and captures the customer's signature, even with no signal in a basement.
- 4
Close and bill
Completed work orders pass time and parts to invoicing. With the Business Central integration Microsoft provides, they post to projects in Business Central for invoicing and cost.
The Field Service pieces contractors lean on
Customer equipment history
Every boiler, panel, pump or chiller at a site is a customer asset with its own work order history, so a technician sees what was done last time before climbing the ladder.
- ✓Asset hierarchy by site
- ✓Service history per unit
- ✓Warranty dates
- ✓Photos and notes from previous visits
Maintenance agreements
Agreements generate recurring work orders for inspections and preventive maintenance at the frequency you set, and can generate invoices on a schedule.
- ✓Quarterly or annual visit schedules
- ✓Pre-filled task lists
- ✓Recurring invoice setup
- ✓Price lists for contract customers
Truck and warehouse stock
Each truck can be set up as a warehouse, so parts used on a job come off the right shelf and reorders reflect what the fleet actually carries.
- ✓Truck stock by technician
- ✓Transfers from the main warehouse
- ✓Purchase orders for special parts
- ✓Return merchandise authorizations
Business Central Service Management or Dynamics 365 Field Service?
Contractor questions about Field Service
Do our technicians need a full Dynamics 365 licence?
Technicians need a Field Service licence of the right type for what they do on the app. Microsoft also sells lighter licences for frontline workers with narrower rights. Licence terms change, so we check the current rules against each role before you buy, and we do not quote Microsoft prices on this page.
Does the mobile app really work without signal?
Yes. The Field Service mobile app has an offline mode that downloads the technician's assigned work orders and related records. Work done offline syncs back when the device reconnects. The offline profile needs setting up carefully so the right data is on the device before the technician leaves.
How does Field Service connect to our accounting?
Microsoft provides an integration between Field Service and Business Central that sends completed work to Business Central projects for invoicing. Customers, items and resources are shared between the two. If you use a different accounting system, the connection is built through Dataverse APIs or an integration platform.
Can we handle both emergency calls and planned maintenance?
Yes, and that mix is where Field Service helps most. Agreements create the planned visits, while emergency work orders carry a higher priority and a promised response time. Dispatchers see both on the schedule board and move planned work when an urgent call comes in.
Is Field Service suitable for construction contractors?
For the service and maintenance side of a construction company, yes. For project work with bids, change orders, progress billing and retainage, it is not the right tool, and the project side belongs in project accounting. Many contractors run both, with a clear rule about which jobs go where.
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