In GA, if you don't have the necessary code change implemented, GA will not be able to show the new Demographics and Interest reports. Instead, the following error message is displayed.
Your Demographics and Interest Reports have been enabled, but your Analytics tracking code does not include the necessary support to show them. Learn more about the simple, one-line, one-time change to your tracking code to add this support.
In the rendered GA code, this line:
Should be updated to this: