In-app purchase "authentication required error"

Development Platform & Builds Mobile
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1

I try to do in-app purchase, when i use “make an in-app purchase” node, a google play window open on my phone saying:

“Error: authentication required”

its say i have to connect to my google account, but i am connected, i can go on google play without problem and account is the good one

but in my game, i get this error. Is there something to do to enable authentication or something else? :x

2

Download the beta directly publish your application as a beta than the problem will disappear

3

See this is something I’ve yet to see mentioned. Thanks for your input, it’s a LOT more helpful than most question/answer or forum posts I’ve seen.