---
sourceDocument: Australia Service Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/service-management-for-the-enterprise

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia Service Management

ft:clusterId :

    - sm4e

bundleId :

    - sm4e

workflow :

    - Technology


---

# Schedule blackout periods

# Schedule blackout periods {#ariaid-title1}

Release version: Australia  
Updated March 12, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
A blackout period prevents work from being performed in a defined area for a scheduled
time period. Blackout periods can be defined for spaces, levels, buildings, campuses, and
zones.

Blackout business rules check the Schedules field of the
Location field on a request or task to assess if there are any schedule
conflicts with the time span of current.expected_start to current.estimated_end.  
{#c_ScheduleBlackout__table_z4v_h12_bv__entry__2}

| Business rule | Action |
|-|-|
| Display Space Schedule Conflicts (facilities_request business rule) | If the current.expected_start and current.estimated_end are populated and the location is a facilities space, informs the user of any possible schedule conflicts. |
| Display Space Schedule Conflicts (facilities_request_task business rule) | If the current.expected_start and current.estimated_end are populated and the location is a facilities space, informs the user of any possible schedule conflicts. |
| Prevent Space Schedule Conflicts (facilities_request_task business rule) | If there are any possible schedule conflicts between `now` and `now + estimated_work_duration`, prevent the user from starting work. To override, a facilities_admin can use a field override_schedule_conflict |
[Table 1. Blackout period business rules]

{#c_ScheduleBlackout__table_z4v_h12_bv}
* **[Create a facilities schedule blackout](https://servicenow-prod.fluidtopics.net/R0D~Vt1Pprk9oTkEIkxN4g)**   
  Blackout periods can be defined for spaces, levels, buildings, campuses, and zones. The Facilities_admin can override blackout period requests.