Here we will try to understand Work Order and its life cycle.
Work Order: Work order defines work that need to be done and is used to coordinate and schedule activities and resources to complete the work. A work order can be used for different types of work such as installations, repairs or preventive maintenance. A work order consists for information such as Description of the issue, who is the customer? Where service need to be performed, are there any parts required? Different tasks to be performed as part of the service, what is the priority and estimation to complete the service, what skills are needed? And Tax information.
Work Order Life cycle: Each Work order follows 5 different stages as stated below. In each stage, there are few steps to be done which are detailed in below table.
Work Order Creation à Schedule à Dispatch à Services à Review/Approval
You can read more from Microsoft Documentation here