---
title: CKShare.SystemFieldKey
framework: cloudkit
role: symbol
role_heading: Enumeration
path: cloudkit/ckshare/systemfieldkey
---

# CKShare.SystemFieldKey

Constants that represent the system fields of a share.

## Declaration

```swift
enum SystemFieldKey
```

## Topics

### Constants

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