CurrentApp.ReportProductFulfillment method only for consumable in app purchase

Question

Hi,

                 Currently I'm working in Inapp Purcahse. Previously I did Consumable InApp Purchase for our Application. It works fine. I used CurrentApp.ReportProductFulfillment method  after the product purchase.

My doubt is how to give acknowledge to store for Durable product. I have to use same CurrentApp.ReportProductFulfillment method for Durable product.

here is my code Correct me if I'm wrong.

// Durable Purchase
                // Initial check for the product is already owned or not
                ProductLicense license = CurrentApp.LicenseInformation.ProductLicenses[packName];
                if(!license.IsActive)
                {
                    await CurrentApp.RequestProductPurchaseAsync(packName, false);
                    ProductLicense productLicense = null;
                    if (CurrentApp.LicenseInformation.ProductLicenses.TryGetValue(packName, out productLicense))
                    {
                        if (productLicense.IsActive)
                        {
                            CurrentApp.ReportProductFulfillment(packName);
                            return;
                        }
                        else
                        {
                            // Purchase error
                            return;
                        }
                    }
                }
                else
                {
                    // Alredy owned the app Popup
                }