After you install Connect, you must make Connect available to agents to use. How you make Connect available depends on where you want to add the feature.
To add Connect to page layouts in Salesforce Lightning Experience, see Adding Connect to a page layout in Salesforce Lightning Experience.
To add Connect to the utility bar in Salesforce Lightning Experience, see Adding Connect to the utility bar in Salesforce Lightning Experience.
If you are using an app in Salesforce Classic, see Adding Connect to Salesforce Classic apps.