---
title: uniqueID
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmetadatagroup/uniqueid
---

# uniqueID

The unique identifier for the metadata group.

## Declaration

```swift
var uniqueID: String? { get }
```

## Discussion

Discussion The value of this property may be nil if no unique identifier is defined for this group.

## See Also

### Inspecting the metadata group

- [items](avfoundation/avmetadatagroup/items.md)
- [classifyingLabel](avfoundation/avmetadatagroup/classifyinglabel.md)