Integration refers to the process of connecting together different software services. The services communicate through an API (Application Programming Interface). As part of the integration process, each service must be made aware of existence of the other.
As an example, Google Analytics provides statistical reports for sites. Google Analytics is told the address of the site, and generates an account number. The site then connects to the Google Analytics API using the account number.
To set up integration with a third-party service, go into edit mode, click the Panels button on the toolbar, and click the Integration button, whose icon is shown in figure 1.
The Integration panel will then open in a new browser tab, giving you access to the following reports: