From the documentation located here: https://developer.android.com/google/play/billing/billing_library_overview
I see that I need to AcknowledgePurchase on my 1-time or consumable in-app purchases otherwise they will be canceled.
I was not aware of this at first and as I am manually managing in-app purchases by not consuming them until necessary.
It is working nicely but as now I noticed this AcknowledgePurchase method, I am worried; will all the purchases be canceled eventually? I checked the developer console and all items still show up as "Charged" even if more than 3 days has been passed. What is going on here? Will Google cancel them soon or is this something else?
(Note, releated to how and why I manage my in-apps in this way: Assume that you have a diamond which will only be consumed serverside when certain condition occurs, until that moment, user can restore their diamond in-app item and when and if I consume it, they can repurchase it. So, Google still keeps purchase info and I do not have to force the user to signup on my servers to be able to sync their purchase with their account)
This requirement is new in the Play Billing Library 2.0. For libraries before this, Google will auto-acknowledge purchases for you.
If you are using Play Billing Library 2.0, then any purchase must be consumed or acknowledged within 3 days of the purchase or else it will be auto-refunded.