Identify people on tracked link clicks using the JS snippet

Customer.io now automatically identify people when they click tracked links that send them to pages containing the JavaScript snippet. We append your links with a _cio_id URL parameter to identify people who click tracked links. This feature is on by default when you create new workspaces. If you want to turn this feature on in an existing workspace, go to Settings > Workspace Settings > URL Parameters and turn on the Add _cio_id URL parameter setting.