purchasesAreCompletedBy
fun purchasesAreCompletedBy(purchasesAreCompletedBy: PurchasesAreCompletedBy): PurchasesConfiguration.Builder
An optional setting. Set this to MY_APP if you have your own IAP implementation and want to use only RevenueCat's backend. Default is REVENUECAT. If you are on Android and setting this to MY_APP, you will have to acknowledge the purchases yourself.
Note: failing to acknowledge a purchase within 3 days will lead to Google Play automatically issuing a refund to the user.
For more info, see revenuecat.com and developer.android.com.