To integrate Field Service with service management features in Business Central, you must have a Premium license. When you have a Premium license, set the User Experience field to Premium on the Company Information page in Business Central.

You can enable integration by selecting Projects or Service and projects in the Integration Type field in the following locations:

The Set up integration to Dynamics 365 Field Service assisted setup guide.
The Dynamics 365 Field Service Integration Setup page.

Field Service integration wizard

When you set the Integration Type field to Service and projects, the feature does the following steps when you enable Field Service integration:

Adds integration table mappings for service order types, service documents, service lines, and service item lines.
Turns on the Archive Orders toggle on the Service Management Setup page.
Makes the Service Order Type field on service orders mandatory because the Work Order Type field is mandatory on Field Service work orders.
Fields in the headers on service orders and work orders transfer information such as the Service Account, Billing Account, and Work Order Type.
Service Item Lines and Work Order Incidents in Field Service transfer information about the customer assets you're repairing.
Service Line fields align with Work Order Products and Work Order Services fields, such as Qty. to Ship, Qty. to Invoice, and Qty. to Consume.

When a technician marks a work order product or service as Used on a work order with a specific work order type, the lines sync to a service order. The system posts consumption based on the settings on the Dynamics 365 Field Service Integration Setup page.

During consumption and invoice posting in Business Central, the system updates the consumed and invoiced quantities on the original work order product and work order service lines in Field Service.

If you select Enable Inventory Availability by Location when you set up the integration, you can view the allocated product quantity from work orders in Field Service as part of the gross requirements in Business Central's inventory availability calculation. Demand generated by orders in Field Service automatically becomes input for planning through synced service orders.