---
title: "init(id:)"
framework: storekit
role: symbol
role_heading: Initializer
path: "storekit/paymentmethodbinding/init(id:)"
---

# init(id:)

Creates the payment method binding for eligible apps and users.

## Declaration

```swift
init(id: String) async throws
```

## Parameters

- `id`: The in-app binding identifier that your server receives from the Apple server when your server initiates payment method binding.

## Discussion

Discussion This method succeeds if the app is entitled to use this API, the id is valid and unexpired, and the user is eligible. Otherwise, it throws an error. See PaymentMethodBinding.PaymentMethodBindingError and StoreKitError.userCancelled for the error information. This method determines if the user is eligible, and requires that they’re signed in to the App Store. important: This method may display a system prompt that asks users to sign in with their Apple Account. Call this method only after an explicit user action, like tapping or clicking a button. Note that it’s possible that the system determines a user isn’t eligible after it prompts for authentication.