---
title: NSTouchBar.CustomizationIdentifier
framework: appkit
role: symbol
role_heading: Type Alias
path: appkit/nstouchbar/customizationidentifier-swift.typealias
---

# NSTouchBar.CustomizationIdentifier

The default type for a Touch Bar customization identifier.

## Declaration

```swift
typealias CustomizationIdentifier = String
```

## See Also

### Configuring user customization

- [customizationIdentifier](appkit/nstouchbar/customizationidentifier-swift.property.md)
- [customizationAllowedItemIdentifiers](appkit/nstouchbar/customizationalloweditemidentifiers.md)
- [customizationRequiredItemIdentifiers](appkit/nstouchbar/customizationrequireditemidentifiers.md)
- [isAutomaticCustomizeTouchBarMenuItemEnabled](appkit/nstouchbar/isautomaticcustomizetouchbarmenuitemenabled.md)