---
sourceDocument: Yokohama Field Service Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/field-service-management

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Field Service Management

ft:clusterId :

    - fsm

bundleId :

    - fsm

workflow :

    - Customer and Industry


---

# Task windows

# Task windows {#ariaid-title1}

Release version: Yokohama  
Updated January 30, 2025  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
A task window is the time period, bordered by start and end times, in which a task is
performed.
Task windows can be flexible or
fixed,
and are used by the route optimization and auto-dispatch features when determining the daily
schedule of staff members. A flexible window has start and end times that the application
attempts to respect when dispatching or routing a task automatically. The system can
reschedule a flexible task window if necessary, to make it fit into the schedule of a staff
member. A fixed task window cannot be rescheduled. If the auto-router that optimizes task
routes or the auto-dispatcher cannot schedule the task for the fixed window time period,
that task is not scheduled at all. The time interval configured for a window cannot be less
than the time required to perform the task.

For more information on creating work order tasks, see [Create a work order task](https://servicenow-prod.fluidtopics.net/yVUHogwFxPYai4sGyp15LQ "Create a work order task from a work order.").

For more information on Work order task start and end dates, see [Work order task start and end dates](https://servicenow-prod.fluidtopics.net/KmxkDFWBQTBzLborGrb5ag "Dynamic scheduling uses work order task Window start and Window end dates to schedule tasks.").