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# modifySubscriptions(saving:deleting:)

Modifies the specified subscriptions and returns the results to an awaiting caller.

```
func modifySubscriptions(saving subscriptionsToSave: [CKSubscription], deleting subscriptionIDsToDelete: [CKSubscription.ID]) async throws -> (saveResults: [CKSubscription.ID : Result<CKSubscription, any Error>], deleteResults: [CKSubscription.ID : Result<Void, any Error>])
```

## Parameters

`subscriptionsToSave`

The subscriptions to save.

`subscriptionIDsToDelete`

The identifiers of the subscriptions to permanently delete.

## Return Value

A tuple with the following named elements:

- `saveResults`: A dictionary of saved subscriptions. The dictionary uses the identifiers of the subscriptions you specify in `subscriptionsToSave` as its keys. The value of each key is a <doc://com.apple.documentation/documentation/Swift/Result> that contains either the corresponding modified subscription (as it appears on the server), or an error that describes why CloudKit can’t modify that subscription.
- `deleteResults`: A dictionary of deleted subscriptions. The dictionary uses the identifiers you specify in `subscriptionIDsToDelete` as its keys. The value of each key is a <doc://com.apple.documentation/documentation/Swift/Result> that contains either <doc://com.apple.documentation/documentation/Swift/Void> to indicate a successful deletion, or an error that describes why CloudKit can’t delete that subscription.

## Discussion

This method throws an error if the request fails, such as when the network is unavailable or the device doesn’t have an active iCloud account; otherwise, the returned tuple includes any individual subscription errors.

For information on a more configurable way to modify subscriptions, see [`CKModifySubscriptionsOperation`](/documentation/CloudKit/CKModifySubscriptionsOperation).

---

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