Go to Google Console and sign in to your Google account. Once signed in, you'll see a list of existing projects (if there are any) or you can click Create Project to create a new one.
On the New Project page, enter a name for your project, select an organization and then click Create.
Make sure your project is still selected as the current project. From the navigation menu, select Library under APIs & Services option.
Search for Google Sheets and click the API tile.
Do the same thing to enable the Google Drive API. Search for Google Drive and click the API tile.
Now we will create credentials that we will download as a JSON file and later add to the Google sheets node to configure it. To create credentials, from the navigation menu, select Credentials under APIs and Services.
On the Credentials page, click Create Credentials and select the Service Account option.
Set the Service account dropdown to New Service Account and click Create.
Select the Role for your Service Account.
Click Done to create credentials. Select Service Account from the list.
Select Details tab and copy the email address.
This information will be used to Share Sheet With Email.
Select Keys tab and click on Add Key
Select JSON key type and click on Create
A key file of josn type will be download to your system.
Now open the downloaded JSON file and copy all information from the file. This information will be used to Set up Google Sheet Connector.