Hello I'm in the process of including IAP in my game and I'd love to implement the SKPaymentTransactionObserver to have a chance to promote my IAP.
I can't find a single line of documentation in Unity docs and even if they say that the functionality is implemented.
Since I don't even know what I've to do to integrate it... could someone please share some example of code or point me to documentation pages that I might have missed?
Adding some details from the IAP documentation: Unity just say "Any purchases that complete while the application is offline will be sent to the application on next initialization." But again it is not clear how to handle this case at initialization... an example of code would be very helpful Here the doc page - >https://docs.unity3d.com/Manual/UnityIAPProcessingPurchases.html