---
title: invalidate()
framework: exposurenotification
role: symbol
role_heading: Instance Method
path: exposurenotification/enmanager/invalidate()
---

# invalidate()

Stops any outstanding operations and invalidates the manager.

## Declaration

```swift
func invalidate()
```

## Discussion

Discussion important: This method is available in iOS 12.5, and in iOS 13.5 and later. Once you call this method, the object can no longer be used. To start using ENManager again, create and activate a new instance of the class.

## Topics

### Completion Handlers

- [invalidationHandler](exposurenotification/enmanager/invalidationhandler.md)