Install the Google Integration extension package
Sandbox: https://test.salesforce.com/packaging/installPackage.apexp?p0=04t2p000000we2EAAQ
Production: https://login.salesforce.com/packaging/installPackage.apexp?p0=04t2p000000we2EAAQ
Before you start, please send us an email at support@gomeddo.com informing us that you are going to set up the Google Calendar integration. We will then provide you with a few licenses to get you started.
You can safely ignore and accept the warning that the extension package has not passed the Salesforce Security Review