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# PKAddPaymentPassViewControllerDelegate

Methods that let the system prompt you for an add payment request, and inform you when a request has succeeded or failed.

```
protocol PKAddPaymentPassViewControllerDelegate : NSObjectProtocol
```

## Overview

Delegates for the [`PKAddPaymentPassViewController`](/documentation/PassKit/PKAddPaymentPassViewController) class must adopt this protocol.

> Important:
> Adding payment passes requires a special entitlement issued by Apple. Your app must include this entitlement before you can use this class. For more information on requesting this entitlement, see the Card Issuers section at [developer.apple.com/apple-pay/](https://developer.apple.com/apple-pay/).

## Topics

### Requesting to add payment cards to Apple Pay

[`addPaymentPassViewController(_:generateRequestWithCertificateChain:nonce:nonceSignature:completionHandler:)`](/documentation/PassKit/PKAddPaymentPassViewControllerDelegate/addPaymentPassViewController(_:generateRequestWithCertificateChain:nonce:nonceSignature:completionHandler:))

Asks the delegate to create an add payment request.

[`PKAddPaymentPassRequest`](/documentation/PassKit/PKAddPaymentPassRequest)

Contains the card data needed to add a card to Apple Pay.

[`addPaymentPassViewController(_:didFinishAdding:error:)`](/documentation/PassKit/PKAddPaymentPassViewControllerDelegate/addPaymentPassViewController(_:didFinishAdding:error:))

### Payment pass errors

[`PKAddPaymentPassError`](/documentation/PassKit/PKAddPaymentPassError)

Error codes for adding payment passes.


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