Can't re-buy in-app billing item on Google Play after it was refunded

Question

I implemented in-app billing into my app and am now testing its handling of refunds.

I bought my app\'s managed in-app billing item with a test account and refunded it.

Answer 1

In case somebody needs android and not kotlin code. All the explanation that smitty wrote:

When starting up the application , You have to check queryPurchases and look for the refunded items. like that:

if (purchase.getPurchaseState() != Purchase.PurchaseState.UNSPECIFIED_STATE)
{
     handleConsumablePurchasesAsync(purchasesList);
     return false;
}

Than you CONSUME this item. smitty1 is a Genius

private void handleConsumablePurchasesAsync(List consumables) {
    Log.d(TAG, "handleConsumablePurchasesAsync");
    for (Purchase purchase : consumables) {
        ConsumeParams params = ConsumeParams.newBuilder()
                .setPurchaseToken(purchase.getPurchaseToken())
                .build();

        billingClient.consumeAsync(params, (billingResult, purchaseToken) -> {
            if (billingResult.getResponseCode() == OK) {
                Log.d(TAG, "Consumed the old purchase that hasn't already been acknowledged");
            } else {
                Log.d(TAG, "Error consume the old purchase that hasn't already been acknowledged -> %s" + String.valueOf(billingResult.getResponseCode()));
            }
        });
    }
}