Windows store promo codes not triggering ProcessPurchase on IAP initialization

Does Unity IAP support promo codes from the Windows store for MR devices? I have a hololens application that I was able to add IAP support when initiating a purchase from the application. Today I tried testing an IAP promo code for a non-consumable good, but Unity is not recognizing that the promo code was applied.

Essentially, the ProcessPurchase callback is not being called for promo code purchases.

In later testing, I purchased a different IAP product.from within the app, by calling the InitiatePurchase function. When I then restarted the application, ProcessPurchase was being called for the sku that I applied the promo code for, as well as the product purchased through the app itself.

Deleting and reinstalling the application also allowed both purchases to be automatically retrieved.

At a bit of a loss here for what might be going on.

Using Unity 2017.1.3p1 with Unity IAP 1.18.

 

Thank you for the report! I believe I understand the problem - that promo purchases are seen only after a subsequent purchase is made.

Calling extensions.GetExtension<IMicrosoftExtensions>().RestoreTransactions() after the promo has been purchased may generate the desired notification more prompty.

 

Calling restore transactions does get ProcessPurchase to be called for the sku where a promo code was applied. However, this requires the user to leave our WMR application to load up the MS store where they are prompted to log in.

Adding a restore purchases button with some warning about being directed outside of the application is ok as a workaround, but ideally I would not need to ask users to perform this extra step at all. Is there any way to have products entitled via promo codes to automatically be included?

Should I file this as a bug report?

 

Cool. Ok I understand the API pops another app and blows the immersion. A ticket would be helpful along with more information to help repro the issue and refine a recommendation / improvement.