How to Set Up Google Analytics
In the early days you would have to go through Google Cloud, get a JSON key, yada, yada yada...Today setting up Google Analytics is easy!
Go to Settings —> Google Analytics —> Click on the Blue "+" on the right —> Click on "Add Integration" (the white box at the bottom of the drop down)
That will take you to Google SSO.
Choose the Google Account that's associated with the Google Analytics feed that you want to pull in and voila, you're good to go.