Dynamics 365 Field Service is specifically engineered to manage onsite service delivery. For the first requirement, it utilizes Universal Resource Scheduling (URS) and the Schedule Board to match technician availability and skills with customer requests. For the second requirement, Field Service manages the entire service lifecycle; once a Work Order is completed by a technician, the system can automatically or manually generate an invoice based on the products, services, and labor hours recorded during the visit. While Customer Service handles case management, Field Service is the designated solution for physical onsite logistics and subsequent billing for those specific service activities.

Microsoft Learn: Dynamics 365 Field Service user guide - Overview of Field Service. Section: "Work order lifecycle."

Microsoft Learn: Dynamics 365 Field Service - Create an invoice. Document ID: fs-create-invoice.

Microsoft Learn: Universal Resource Scheduling for Field Service. Section: "Scheduling onsite visits."