---
title: "Handle the final state"
url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/ios-integration/key-steps-ios/process-a-basic-transaction-ios/handle-the-final-state-ios"
source_url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/ios-integration/key-steps-ios/process-a-basic-transaction-ios/handle-the-final-state-ios.md"
canonical: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/ios-integration/key-steps-ios/process-a-basic-transaction-ios/handle-the-final-state-ios"
last_modified: "2026-05-24T12:54:31+02:00"
language: "en"
---

# Handle the final state

[View source](/point-of-sale/classic-library-deprecation/classic-library-integrations/ios-integration/key-steps-ios/process-a-basic-transaction-ios/handle-the-final-state-ios.md)

## Delegate

The `transactionComplete` delegate is called when the transaction completes from the library perspective.

Completion does not necessarily mean that a payment has been made - the transaction may also have been declined or cancelled. This can be determined by examining the given `transaction`'s status via the `finalState` property.

In case of a technical problem the `finalState` property will have value UNKNOWN.

 After this method has been called, no other methods on the delegate will be called.

### Parameters

| Name          | Type               | Required                                                                                    | Description                                                                                    |
| ------------- | ------------------ | ------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- |
| `transaction` | ADYTransactionData | ![-white\_check\_mark-](/user/data/smileys/emoji/white_check_mark.png "-white_check_mark-") | Object containing referral data, and method to continue transaction processing with auth code. |

### Declaration code example

#### Objective-C

```objectivec
- (void)transactionComplete:(ADYTransactionData *)transaction;
```

#### Swift

```swift
func transactionComplete(_ transaction: ADYTransactionData!)
```

Receiving the transactionComplete delegate does not necessarily mean that the payment was successful. To determine this, inspect the `finalState` property of the given `ADYTransactionData`.