---
sourceDocument: Brazil IT Service Management
sourceDocumentLink: https://www.servicenow.com/docs/r/it-service-management

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil IT Service Management

ft:clusterId :

    - itsm

bundleId :

    - itsm

workflow :

    - Technology


---

# Schedule categories

# Schedule categories {#ariaid-title1}

Release version: Brazil  
Updated October 14, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Maintenance, blackout, and information schedules each have their own set of categories that describe the purpose of the schedule.
Select a category in the Category field of a schedule. The field is empty by default, and the category is stored only after you select a value and save the schedule.
{#schedule-categories-reference__table-schedule-categories__entry__2}

| Schedule type | Categories |
|-|-|
| Maintenance schedule | * Preventive (measures to improve resilience) * Patching * General {#schedule-categories-reference__ul-maintenance-categories} |
| Blackout schedule | * Hard Freeze: A total prohibition on code deployments or infrastructure changes. * Soft Freeze: A voluntary restriction where nonessential changes are prohibited, but exceptions are allowed for critical defect fixes and security patches. {#schedule-categories-reference__ul-blackout-categories} |
| Information schedule | * Holiday * Global event * Organisational event {#schedule-categories-reference__ul-information-categories} |
[Table 1. Categories by schedule type]

{#schedule-categories-reference__table-schedule-categories}

## Categories in conflict records {#schedule-categories-reference__schedule-categories-reference-conflicts}

When conflict detection generates a conflict record for a maintenance or blackout schedule, the conflict record includes the category of that schedule. Information schedules don't generate conflict records.
**Related concepts**   

* [Schedule types in conflict detection](https://www.servicenow.com/docs/B_0H4tP7Mxow4pE~qutmmw "Conflict detection uses maintenance, blackout, and information schedules to evaluate when change requests can be implemented. Each schedule type supports a category and optional ownership fields.")  
**Related tasks**   

* [Create an information schedule](https://www.servicenow.com/docs/XAw70FkAL3Z8EyGG6gpKsw "Create an information schedule to record events such as holidays or organizational events that change teams should be aware of. Conflict detection doesn't create conflict records for information schedules.")