I want to enable Demographic and Interest Reports in Google Analytics. But whenever I try to do so, this error is shown:
Does anybody know how to solve this? I've refreshed the page, waited a couple of days and tried again, but to no avail.
In order to enable that feature you need to have to enable Remarketing and Advertising reporting features and have an active Google Ads account linked with analytics.
For more details see: Enable Demographics and Interests reports and Enable Remarketing and Advertising Reporting Features in Analytics