StoreKit 2 Not Fetching Products in Sandbox (iOS 18.2, Xcode 16.2, macOS 15.3.1)

Question

I’m struggling to get StoreKit 2 to fetch products in my SwiftUI app while using a sandbox user. I think I’ve followed all necessary setup steps in Xcode, App Store Connect, and my physical test device, but Product.products(for:) always returns an empty array. I’d appreciate any insights!

What I’ve Done

1. Local App Setup (Xcode 16.2)

   • Created a blank SwiftUI Xcode project.

   • Enabled In-App Purchase capability under Signing & Capabilities.

   • Implemented minimal StoreKit 2 code to fetch available products (see below).

   • Using the correct bundle identifier, which matches App Store Connect.

2. App Store Connect Configuration

   • Registered the app with the same bundle identifier.

   • Created an Auto-Renewable Subscription with: Product ID v1 (matches my code). All fields filled (pricing, localization, etc.). Status: Ready for Review.

3. Sandbox User & Testing Setup

   • Created a sandbox tester account.

   • On my physical device (iOS 18.2): Logged in with the sandbox user under Settings → Developer → Sandbox Apple ID. Installed and ran the app directly from Xcode.

4. Issue: StoreKit Returns No Products

   • Product.products(for:["v1"]) does not return any products.

   • There are no errors thrown, just an empty array.

   • I confirmed that StoreKit Configuration is set to None in Xcode.

   • No StoreKit-related logs appear in the Console.

Code Snippets

//StoreKitManager.swift

import StoreKit
import SwiftUI

@MainActor
class StoreKitManager: ObservableObject {
    @Published var products: [Product] = []
    @Published var errorMessage: String?

    func fetchProducts() async {
        do {
            let productIDs: Set<String> = ["v1"] // Matches App Store Connect
            let fetchedProducts = try await Product.products(for: productIDs)
            print(fetchedProducts) // Debug output

            DispatchQueue.main.async {
                self.products = fetchedProducts
            }
        } catch {
            DispatchQueue.main.async {
                self.errorMessage = "Failed to fetch products: \(error.localizedDescription)"
            }
        }
    }
}

//ContentView.swift

import SwiftUI

struct ContentView: View {
    @StateObject private var storeKitManager = StoreKitManager()

    var body: some View {
        VStack {
            if let errorMessage = storeKitManager.errorMessage {
                Text(errorMessage).foregroundColor(.red)
            } else if storeKitManager.products.isEmpty {
                Text("No products available")
            } else {
                List(storeKitManager.products, id: \.id) { product in
                    VStack(alignment: .leading) {
                        Text(product.displayName).font(.headline)
                        Text(product.description).font(.subheadline)
                        Text("\(product.price.formatted(.currency(code: product.priceFormatStyle.currencyCode ?? "USD")))")
                            .bold()
                    }
                }
            }

            Button("Fetch Products") {
                Task {
                    await storeKitManager.fetchProducts()
                }
            }
        }
        .padding()
        .onAppear {
            Task {
                await storeKitManager.fetchProducts()
            }
        }
    }
}

#Preview {
    ContentView()
}

Additional Information • iOS Version: 18.2 • Xcode Version: 16.2 • macOS Version: 15.3.1 • Device: Physical iPhone (not simulator) • StoreKit Configuration: Set to None

Is there any way to debug why StoreKit isn’t recognizing my subscription?