How to integrate google calendar with Odoo

[@paulsalazar1345]

You just saved my day!! Even though this is 2 years old, it worked perfectly for me, you are a genius man! Greetings from colombia

[@cristhianjyxcv]

Error 400: invalid_request
You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy for keeping apps secure.
You can let the app developer know that this app doesn't comply with one or more Google validation rules.
Many greetings from Peru

[@moayedfaza380]

same problem