[Solved] UnityIAP always return onFailCalback with message "Unknown" when purchase

Dear all,

Did you guys have any idea about this?

When I try to purchase item, call m_StoreController.InitiatePurchase(product);

At first it was fine when I tested on Unity 5.3.1 before. It used to can be purchased just fine.

But since I haven't test it for a long time, and test it on Unity 5.3.2 p4. It always return onFailCallback()

And the message it return is just "Unknown".

I have no clue at all as it don't tell me anything about this.

Can anybody help or know anything about this?

Thanks!

 

I forgot to mention that this only happan on iOS only.

On Android right now can be purchased just fine.

Latest test on Unity 5.3.3f1, on iOS still not work.

 

My bad,

It's turn out that I didn't use the right Sandbox account to buy Product.