Yes and no. ROI tracking is not hard if you want to run 1 campaign on Google and nothing else. ROI tracking is a whole subspecialty of adtech if you want to p

Yes and no. ROI tracking is not hard if you want to run 1 campaign on Google and nothing else. ROI tracking is a whole subspecialty of adtech if you want to parse out one medium or campaign's spend from all the other spend have running -- imagine you spend $10m / month on media, you have ROI and you have spend across platforms and nobody except you is incentivized to figure out what ad spend should be credited for which response. That's real ROI tracking and it is quite hard