How to handle UTM naming for ad creatives? Experience in ad performance review

The worst part of reviewing ad performance is realizing after the campaign ends that the naming conventions were a mess. Creative files named 'final', 'new', or 'boss_version', and UTM links filled out haphazardly—in the end, the report shows a high conversion rate for an ad, but you can't tell if it was the headline, the visual, the audience, or the landing page that did the work. When I manage…