<!--
{
  "availability" : [
    "iOS: 14.0.0 -",
    "iPadOS: 14.0.0 -",
    "macCatalyst: 14.0.0 -",
    "macOS: 11.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 7.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "PassKit",
  "identifier" : "/documentation/PassKit/PKPaymentRequestMerchantSessionUpdate",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "PassKit (Apple Pay and Wallet)"
    ],
    "preciseIdentifier" : "c:objc(cs)PKPaymentRequestMerchantSessionUpdate"
  },
  "title" : "PKPaymentRequestMerchantSessionUpdate"
}
-->

# PKPaymentRequestMerchantSessionUpdate

An object that updates a payment request with a merchant validation.

```
class PKPaymentRequestMerchantSessionUpdate
```

## Overview

This is the handler for [`paymentAuthorizationController(_:didRequestMerchantSessionUpdate:)`](/documentation/PassKit/PKPaymentAuthorizationControllerDelegate/paymentAuthorizationController(_:didRequestMerchantSessionUpdate:)) and [`paymentAuthorizationViewController(_:didRequestMerchantSessionUpdate:)`](/documentation/PassKit/PKPaymentAuthorizationViewControllerDelegate/paymentAuthorizationViewController(_:didRequestMerchantSessionUpdate:)).

## Topics

### Creating a merchant session update

[`init(status:merchantSession:)`](/documentation/PassKit/PKPaymentRequestMerchantSessionUpdate/init(status:merchantSession:))

Creates a payment method update with the specified status and merchant session.

### Getting information for the merchant session update

[`status`](/documentation/PassKit/PKPaymentRequestMerchantSessionUpdate/status)

The current authorization status for the payment.

[`session`](/documentation/PassKit/PKPaymentRequestMerchantSessionUpdate/session)

An object that validates the identity of a merchant for the payment request.

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

An object that validates the identity of a merchant for a payment request.



---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)