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# CKSyncEngineSendChangesContext

The context of an attempt to send changes to the server.

```
@interface CKSyncEngineSendChangesContext : NSObject
```

## Overview

A sync engine has two ways to send changes to iCloud — periodically, in cooperation with the system scheduler, and manually, whenever your app invokes the [`sendChangesWithCompletionHandler:`](/documentation/CloudKit/CKSyncEngine-4b4w9/sendChangesWithCompletionHandler:) method.
This object provides information about a single attempt to send changes that includes both the reason for the attempt and any additional options in use by the attempt.

## Topics

### Accessing specific attributes

[`reason`](/documentation/CloudKit/CKSyncEngineSendChangesContext/reason)

The reason for the send operation.

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

Describes the reason for a sync operation.

[`options`](/documentation/CloudKit/CKSyncEngineSendChangesContext/options)

The additional options for the send operation.

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

A set of options to use with a send operation.


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