Google App Trust
To enable Firebase events you will need to login into your API Security
https://admin.google.com/AdminHome?hl=en#SecuritySettings:exp=1
Click on API Security
https://admin.google.com/AdminHome?hl=en#Oauth2ScopeManagement:subtab=installed
Click on the client ID that you specified in oauthproviders table. On the right side there is a three dots. Press Trust