---
title: "null"
framework: os
role: symbol
role_heading: Type Property
path: os/ossignpostid/null
---

# null

A signpost identifier that indicates a disabled signpost.

## Declaration

```swift
static let null: OSSignpostID
```

## See Also

### Getting Signpost Identifiers

- [exclusive](os/ossignpostid/exclusive.md)
- [invalid](os/ossignpostid/invalid.md)