[SOLVED] Android Google Billing Client – onSkuDetailsResponse Always Empty List

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I was wondering could you help. I followed the instructions at https://developer.android.com/google/play/billing/integrate, but I cannot seem to get the purchase flow working. The billing seems to setup ok, but when I try to query for my in-app products, the list is always returning empty. Can someone please help?

In my app level build.gradle file, I have included the Google Billing SDK:

implementation 'com.android.billingclient:billing:3.0.0'

Then I have created an activity to test out the code. It first initialises the BillingClient and starts the connection. The connection seems to finish the setup correctly. Once setup correctly, I then try to query the products that I have available in my Google Play Console under ‘Store presence’ > ‘In-app products’ > ‘Manage products’

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The following is then the code in the Activity that should kick off the process and return the SkuDetails list, but unfortunately it is returning back empty.

private BillingClient billingClient;

protected void onCreate(Bundle savedInstanceState) {

    this.billingClient = BillingClient.newBuilder(this)

private PurchasesUpdatedListener purchaseUpdateListener = new PurchasesUpdatedListener() {
    public void onPurchasesUpdated(@NonNull BillingResult billingResult, @Nullable List<Purchase> list) {
        Log.d("Billing", "onPurchasesUpdated - List Size: " + list.size());

private BillingClientStateListener billingClientStateListener = new BillingClientStateListener() {
    public void onBillingSetupFinished(@NonNull BillingResult billingResult) {
        if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
            Log.d("Billing", "onBillingSetupFinished - OK");
        } else {
            Log.d("Billing", "onBillingSetupFinished - Something wrong response Code: " + billingResult.getResponseCode());

    public void onBillingServiceDisconnected() {
        Log.d("Billing", "Service disconnected");

private void queryProducts() {
    List<String> productIdsList = new ArrayList<>();

    SkuDetailsParams.Builder params = SkuDetailsParams.newBuilder();
    this.billingClient.querySkuDetailsAsync(params.build(), new SkuDetailsResponseListener() {
        public void onSkuDetailsResponse(@NonNull BillingResult billingResult, @Nullable List< SkuDetails > list) {
            Log.d("Billing", "onSkuDetailsResponse - List Size: " + list.size());


So for anyone who is having similar issues, it seems that (well in my case anyways) that my app needed to be successfully published before I could retrieve the in-app products from the app. Once my app was published, I was then able to query and use the in-app products.

Answered By – Graham Baitson

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