# What is Blast radius?

> The blast radius of a change is the set of other components it could affect: the Flows, Apex, validation rules, components, reports and permissions that reference what is being changed. Knowing it before a change ships is the core of impact analysis.

Source: https://synconai360.com/glossary/blast-radius

## Why it matters

Most unexpected breakage on Salesforce comes from components nobody realised depended on the thing that changed.

## In SyncOnAI 360

Every SyncOnAI 360 proposal names up to twelve affected components, automation and validation first and access grants last, drawn from an evidence-based dependency graph. Where impact analysis is not available for a type, the check says so.

## Related terms

- [Salesforce dependency](https://synconai360.com/glossary/salesforce-dependency)
- [Pre-flight check](https://synconai360.com/glossary/pre-flight-check)
- [Impact analysis](https://synconai360.com/glossary/impact-analysis)