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# CKSyncEngineSentDatabaseChangesEvent

An object that provides information about a sent batch of database changes.

```
@interface CKSyncEngineSentDatabaseChangesEvent : CKSyncEngineEvent
```

## Topics

### Accessing successful changes

[`deletedZoneIDs`](/documentation/CloudKit/CKSyncEngineSentDatabaseChangesEvent/deletedZoneIDs)

The unique identifiers of the deleted record zones.

[`savedZones`](/documentation/CloudKit/CKSyncEngineSentDatabaseChangesEvent/savedZones)

The modified record zones.

### Accessing failed changes

[`failedZoneDeletes`](/documentation/CloudKit/CKSyncEngineSentDatabaseChangesEvent/failedZoneDeletes)

The unique identifiers of the record zones CloudKit is unable to delete, and the reasons why.

[`failedZoneSaves`](/documentation/CloudKit/CKSyncEngineSentDatabaseChangesEvent/failedZoneSaves)

The record zones that CloudKit is unable to modify.

[`CKSyncEngineFailedZoneSave`](/documentation/CloudKit/CKSyncEngineFailedZoneSave)

An object that describes an unsuccessful attempt to modify a single record zone.


---

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