---
title: OSSystemExtensionRequest.ReplacementAction.cancel
framework: systemextensions
role: symbol
role_heading: Case
path: systemextensions/ossystemextensionrequest/replacementaction/cancel
---

# OSSystemExtensionRequest.ReplacementAction.cancel

An action that tells the manager to cancel replacement of a system extension.

## Declaration

```swift
case cancel
```

## See Also

### Replacement Actions

- [OSSystemExtensionRequest.ReplacementAction.replace](systemextensions/ossystemextensionrequest/replacementaction/replace.md)