Google Sites Connector Requirements
CES 7.0.6225+ (December 2013) [more]
Coveo license for the Google Sites connector
Your Coveo license must include support for the Google Sites connector to be able to use this connector (see What Information Is Displayed in the License Page?).
A valid Google Account
Using a Google Account with administrator privilege, you must log in the Google API Console to authorize the Coveo connector to access your Google Sites (see Granting the Connector Access to Your Google Sites).
Grant Coveo access to your Google Sites (see Granting the Connector Access to Your Google Sites).