[Closed] IAP not working for google play

I have been looking at "

" and “https://unity3d.com/cn/learn/tutorials/topics/analytics/integrating-unity-iap-your-game” and they say you must buy it from your phone however, My scene only have one button buy 50 coins , however when I press it nothing shows up does anyone have any clue why? or how I can debug it.
1.I already went to google dev and create a 50gold
2.No problem while testing in editor

@kitman20022002

Have you followed every step in this guide?

Have you made sure to mark your product as Active in the Google Developer Console?

When testing IAP, you need to make sure you are using a different account than the account that uploaded the SDK.

If none of that works, would you be able to post some sample code from your IAP manager?