---
title: thumbnailImageData
framework: cloudkit
role: symbol
role_heading: Type Property
path: cloudkit/ckshare/systemfieldkey/thumbnailimagedata
---

# thumbnailImageData

The system field key for the share’s thumbnail image data.

## Declaration

```swift
static let thumbnailImageData: CKRecord.FieldKey
```

## See Also

### Constants

- [shareType](cloudkit/ckshare/systemfieldkey/sharetype.md)
- [title](cloudkit/ckshare/systemfieldkey/title.md)