# What is Change freeze window?

> A change freeze window is a period during which production deployments are not allowed, such as quarter end, a major launch or a client's busy season. Freezes reduce risk when the business can least afford an incident.

Source: https://synconai360.com/glossary/freeze-window

Also called: deployment freeze.

## Why it matters

A freeze only works if the deploy path enforces it; a calendar invite does not stop a deploy.

## In SyncOnAI 360

The SyncOnAI 360 deploy policy sets freeze windows for each production org, along with required approvers and auto-approval for low-risk work. A policy can make deploys harder but can never let through a change that failed its checks.

## Related terms

- [Maker-checker](https://synconai360.com/glossary/maker-checker)
- [Salesforce deployment](https://synconai360.com/glossary/salesforce-deployment)