Implementing app purchase with subscription add-on

Hy, @Junjie Zhu - MSFT ,

Thanks For Answering, actually currently i am just implementing but here i did not get any product to buy whereas i create 4 add-on product for purchase.

private async Task<StoreProduct> GetSubscriptionProductAsync()
{
    // Load the sellable add-ons for this app and check if the trial is still 
    // available for this customer. If they previously acquired a trial they won't 
    // be able to get a trial again, and the StoreProduct.Skus property will 
    // only contain one SKU.
    StoreProductQueryResult result =
        await context.GetAssociatedStoreProductsAsync(new string[] { "Durable" });

    if (result.ExtendedError != null)
    {
        System.Diagnostics.Debug.WriteLine("Something went wrong while getting the add-ons. " +
            "ExtendedError:" + result.ExtendedError);
        return null;
    }

    // Look for the product that represents the subscription.
    foreach (var item in result.Products)
    {
        StoreProduct product = item.Value;
        if (product.StoreId == subscriptionStoreId)
        {
            return product;
        }
    }

    System.Diagnostics.Debug.WriteLine("The subscription was not found.");
    return null;
}

Hello @Deepak Patel ,

What is the output of the code above? Didn't it find the subscription?

According to the process, after creating adds-on, you need to publish it before you query it. After purchasing in the app, querying the license result is activated.

Thank you.

Hy @Junjie Zhu - MSFT ,
As above you provide me code that will be execute only when " GetSubscriptionProductAsync() " this function successfully run without any exception but Here i get exception like this - Exception from HRESULT: 0X803F6107.

i do alot of things but unable to get the add-on products... please provide me solution.

Hello @Deepak Patel ,

I used the official sample code and was able to find my product. Please double check if your product is in the store.

 private StoreContext context = null;
 StoreProduct subscriptionStoreProduct;

 // Assign this variable to the Store ID of your subscription add-on.
 private string subscriptionStoreId = "YourSubscriptionStoreID";

 private async Task<StoreProduct> GetSubscriptionProductAsync()
 {
     // Load the sellable add-ons for this app and check if the trial is still 
     // available for this customer. If they previously acquired a trial they won't 
     // be able to get a trial again, and the StoreProduct.Skus property will 
     // only contain one SKU.
     StoreProductQueryResult result =
         await context.GetAssociatedStoreProductsAsync(new string[] { "Durable" });
     if (result.ExtendedError != null)
     {
         System.Diagnostics.Debug.WriteLine("Something went wrong while getting the add-ons. " +
             "ExtendedError:" + result.ExtendedError);
         return null;
     }
     // Look for the product that represents the subscription.
     foreach (var item in result.Products)
     {
         StoreProduct product = item.Value;
         if (product.StoreId == subscriptionStoreId)
         {
             return product;
         }
     }
     System.Diagnostics.Debug.WriteLine("The subscription was not found.");
     return null;
 }

Thank you.