---
title: "sessionWasSuspended(_:)"
framework: nearbyinteraction
role: symbol
role_heading: Instance Method
path: "nearbyinteraction/nisessiondelegate/sessionwassuspended(_:)"
---

# sessionWasSuspended(_:)

Notifies you of a suspended session.

## Declaration

```swift
optional func sessionWasSuspended(_ session: NISession)
```

## Parameters

- `session`: The session that NI suspended.

## Mentioned in

Initiating and maintaining a session

## Discussion

Discussion When NI invokes this callback, the session suspends and doesn’t receive session(_:didUpdate:) callbacks. NI suspends a session when the user backgrounds the app. If the user reactivates the app before NI times out the session, NI calls sessionSuspensionEnded(_:). A suspended session won’t resume on its own. To resume the session, call run(_:) again, passing in your session’s configuration. If the app stays backgrounded for too long during a suspension, NI invalidates the session (see session(_:didInvalidateWith:)) and the peer user’s session invokes session(_:didRemove:reason:) with reason NINearbyObject.RemovalReason.timeout. Additionally, the system may suspend a session for internal reasons.

## See Also

### Managing interruption

- [sessionSuspensionEnded(_:)](nearbyinteraction/nisessiondelegate/sessionsuspensionended(_:).md)