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# NSApplication.TerminateReply.terminateLater

```
case terminateLater
```

## Discussion

It may be OK to proceed with termination later. Returning this value causes Cocoa to run the run loop in the [`NSModalPanelRunLoopMode`](/documentation/AppKit/NSModalPanelRunLoopMode) until your app subsequently calls [`reply(toApplicationShouldTerminate:)`](/documentation/AppKit/NSApplication/reply(toApplicationShouldTerminate:)) with the value <doc://com.apple.documentation/documentation/Swift/true> or <doc://com.apple.documentation/documentation/Swift/false>. This return value is for delegates that need to provide document modal alerts (sheets) in order to decide whether to quit.

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