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# CKFetchRecordZoneChangesOperation.ZoneConfiguration

A configuration object that describes the information to fetch from a record zone.

```
class ZoneConfiguration
```

## Topics

### Creating a Zone Change Configuration

[`init(previousServerChangeToken:resultsLimit:desiredKeys:)`](/documentation/CloudKit/CKFetchRecordZoneChangesOperation/ZoneConfiguration/init(previousServerChangeToken:resultsLimit:desiredKeys:))

Creates a zone configuration with the desired keys and a result limit for updates.

### Accessing a Zone Change Configuration

[`previousServerChangeToken`](/documentation/CloudKit/CKFetchRecordZoneChangesOperation/ZoneConfiguration/previousServerChangeToken)

The token that identifies the starting point for retrieving changes.

[`resultsLimit`](/documentation/CloudKit/CKFetchRecordZoneChangesOperation/ZoneConfiguration/resultsLimit)

The maximum number of records to fetch from the record zone.

[`desiredKeys`](/documentation/CloudKit/CKFetchRecordZoneChangesOperation/ZoneConfiguration/desiredKeys)

The fields to fetch for the requested records.

[`desiredKeys`](/documentation/CloudKit/CKFetchRecordZoneChangesConfiguration/desiredKeys)

The fields to fetch for the requested records.


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