---
title: Changes Calendar 
slug: helium-en/changes-calendar
description: Learn how to effectively manage maintenance and blackout periods within your organization with this step-by-step guide. Access the main menu, navigate to "Processes > Change Management > Window of Change," and easily view and register new windows of chang
createdAt: 2021-10-19T00:35:08.000Z
---

This functionality is intended to manage the periods in which the organization will pass through a period of maintenance or blackout, then, help in the change planning.

## Procedure

1. Access the main menu `Processes > Change Management > Window of Change`;
2. The calendar screen of changes will be presented, where it is possible to view the periods of maintenance and blackout;
3. To register a new window of change, click on the date you want;
4. Complete the necessary fields (title, type, start and end date/time,
    description of the change, recurrence of the window of change).
    There are two types of change windows:
   - **Maintenance:** used to establish periods of time that changes in the
      CI will occur;
   - **Blackout:** used to establish periods of time that changes in the CI
      will not occur.
5. Remember that the "**Global**" field should only be selected for "**Maintenance**" type of window of change, since this field should only be used for a maintenance window that does not have associated CI.
6. Click on "**Add**".