Running into the same issue with iOS 18.2 using UIKit (Purchases work as expected with iOS 18.1). I have my purchases in views that are shown as .modalPresentationStyle = .pageSheet and .modalPresentationStyle = .fullScreen. Tried other presentation styles but i keep getting "Could not get confirmation scene ID for" followed by the error "unknown".

Very late to the answer but the solution was to simply add a UITapGestureRecognizer: let tapGesture = UITapGestureRecognizer(target: self, action: action) button.addGestureRecognizer(tapGesture)

I ended up finding a solution for UIKit through the hints from @jpdev001. The fix involves two key components: Creating a hidden UIWindow that provides the necessary context for StoreKit operations. This window is kept at a lower window level but maintains key status. Wrapping the presenting view controller in a UINavigationController, which iOS 18.2's StoreKit requires for proper purchase flow. I created a reusable protocol and utility function that handles this automatically. The function takes care of creating the hidden window, managing the navigation controller setup, and setting the requested presentation styles. protocol Navigatable: UIViewController { var displayedWindow: UIWindow? { get set } } extension UIViewController { func presentWithStoreKitSupport<T: Navigatable>( from presentingView: UIViewController, viewController: T, presentationStyle: UIModalPresentationStyle, isModalInPresentation: Bool = false, transitionStyle: UIModalTransitionStyle? = nil, animated: Bool = true ) { // Create navigation controller let navigationController = UINavigationController(rootViewController: viewController) navigationController.isNavigationBarHidden = true navigationController.modalPresentationStyle = presentationStyle navigationController.isModalInPresentation = isModalInPresentation if let transitionStyle = transitionStyle { navigationController.modalTransitionStyle = transitionStyle } // Create StoreKit context window if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene { let purchaseWindow = UIWindow(windowScene: windowScene) purchaseWindow.isHidden = true purchaseWindow.windowLevel = .normal - 1 purchaseWindow.rootViewController = UIViewController() purchaseWindow.makeKeyAndVisible() // Store window reference viewController.displayedWindow = purchaseWindow // Present the navigation controller presentingView.present(navigationController, animated: animated) } } } The transition to the respective view can be implemented the following way: view.presentWithStoreKitSupport( from: view, // the main view viewController: navigatingView, // view we intend to navigate to presentationStyle: .fullScreen ) Using this approach for the views that include in-app purchases fixed the issue for me. The solution also still works for older iOS Versions (tested with iOS 15 an 17). Also tested on multiple physical devices (iPhone 12 Pro and 15 Pro).