Integrating with Google allows you to sync your calendar to your Google Calendar as well as for reporting related to Google Ads.
Step 1: Connecting Your Google Account
Go to Settings > Integrations
Click Connect Under the Google Icon
Select the account you wish to connect
Enter your password (if prompted)
Agree to the Terms & Conditions by clicking Allow
Click Close.
You can now sync your Calendar to the integrated Google Account within Calendar Settings. You can also add analytics and Ad Word information for tracking & attribution purposes. To set up your Gmail SMTP, check out our article specifically about that as it is a separate process from the Google Integration.