---
title: didInvalidate()
framework: accessorynotifications
role: symbol
role_heading: Instance Method
path: accessorynotifications/notificationsforwarding/accessorynotificationshandler/didinvalidate()
---

# didInvalidate()

Handles notification session termination.

## Declaration

```swift
func didInvalidate()
```

## Discussion

Discussion Clean up resources and clear stored session references when the system calls this method.

## See Also

### Managing the session life cycle

- [didActivate(for:)](accessorynotifications/notificationsforwarding/accessorynotificationshandler/didactivate(for:).md)