---
title: CNContainerIdentifierKey
framework: contacts
role: symbol
role_heading: Global Variable
path: contacts/cncontaineridentifierkey
---

# CNContainerIdentifierKey

The identifier key of the container.

## Declaration

```swift
let CNContainerIdentifierKey: String
```

## Discussion

Discussion This key represents the container identifier property for KVC/KVO usage. This property is always fetched.

## See Also

### Getting Container-Related Keys

- [CNContainerNameKey](contacts/cncontainernamekey.md)
- [CNContainerTypeKey](contacts/cncontainertypekey.md)