unable to get subscription products macos iap xcode swift

Hi Apple Support,

I am encountering an issue while testing in-app purchases in the sandbox environment.

1. I have created a sandbox tester account
2. Logged out of the App Store and System Settings on my Mac.
3. My main developer account is signed in under Sign In & Capabilities in Xcode.
4. The Bundle ID matches the one configured in App Store Connect.
5. The Product ID I am querying also matches the configuration.
6. Deleting the app and reinstalling.
7. Restarting my Mac.

When running my code in debug mode, I observe the following:

Running debug build
App Store environment: Production
[1b294b55] Error updating Storefront: Error Domain=StoreKit_Shared.StoreKitInternalError Code=7 "(null)"
Valid products: []
Invalid product IDs: ["com.x.x.x.monthly"]
No products found

The Product ID (com.x.x.x.monthly) matches the one I have configured in App Store Connect.

The bundle id matches.

When I create a StoreKit Configuration file in Xcode and sync it with my app, I can see the product IDs correctly.

Below are the relevant code snippets for fetching and handling products:

func fetchProducts() {
    guard !productIDs.isEmpty else {
        print("No product IDs configured")
        return
    }
    let request = SKProductsRequest(productIdentifiers: productIDs)
    request.delegate = self
    print("Starting product request...")
    request.start()
}

func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
    DispatchQueue.main.async {
        print("Valid products: \(response.products)")
        print("Invalid product IDs: \(response.invalidProductIdentifiers)")
        self.products = response.products
        if self.products.isEmpty {
            print("No products found")
        } else {
            print("products not empty")
            for product in self.products {
                print("Fetched product: \(product.localizedTitle) - \(product.priceLocale.currencySymbol ?? "")\(product.price)")
            }
        }
    }
}

func debugStoreSetup() {
    if let receiptURL = Bundle.main.appStoreReceiptURL {
        if receiptURL.lastPathComponent == "sandboxReceipt" {
            print("App Store environment: Sandbox")
        } else {
            print("App Store environment: Production")
        }
    } else {
        print("No receipt found")
    }
}

Could you help identify why my app is not recognizing the Product ID in the sandbox environment?

Thank you for your assistance.