# loadProduct(withParameters:completionBlock:) Loads a new product screen to display. ``` func loadProduct(withParameters parameters: [String : Any], completionBlock block: ((Bool, (any Error)?) -> Void)? = nil) ``` ## Parameters `parameters` A dictionary describing the content you want the view controller to display. See [Product Dictionary Keys](/documentation/StoreKit/product-dictionary-keys) for keys that describe the product. See [Ad network install-validation keys](/documentation/StoreKit/ad-network-install-validation-keys) for keys that describe an impression in an advertising campaign. `block` A block to be called when the product information has been loaded from the App Store. The completion block is called on the main thread and receives the following parameters: - `result`: if the product information was successfully loaded, otherwise . - `error`: If an error occurred, this object describes the error. If the product information was successfully loaded, this value is `nil`. ## Discussion For a seamless user experience, load the product information before presenting the [`SKStoreProductViewController`](/documentation/StoreKit/SKStoreProductViewController) view controller. However, if you load the product information while presenting the view controller, once loaded, the product data replaces the contents of the view controller. --- Copyright © 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)