How to set up the Google Sheets integration
First, navigate to the campaign where you'd like to connect your Google Sheets account.
Click "Integrations" on the left side menu, and then choose Google Sheets.
On the next screen, click "Connect New Account".
Any previously connected Google Sheets accounts will be shown (if applicable).
To connect a new account, click the "Connect New Account" button at the bottom of the screen.
Next, you will see a screen which says "Application Connection would like to have |various permissions|". Click "Allow".
Finally, you will be prompted to select the account which you would like to connect. Check the box next to the appropriate account, then click "Save".