I created a new project in Unity 2022.1.3f1 and attempted to do In-app Purchases with the new Unity Games Services package In App Purchases 4.1.5 and on the Project Settings window I get the errors "There was an error checking the server for existing key. please try again later." and "Please enter your Google Public Key for this application to ensure revenue numbers reflect verified payment for Google":
I then attempted to set the Google key and got the message, "You are not authorized to set the license key":
So the question is: how do I get authorized to set the key?
The answer is simple: You don't! The error message is a red herring (NPI)! Just ignore this error and add the key to Unity's Developer Dashboard from the projects tab and project settings:
Happy programming!