1. Your tracking is broken
This is the most common issue and the least visible. If conversion tracking isn't set up correctly, Google's algorithm can't learn which clicks lead to results. You end up optimising for clicks instead of customers.
Check this first. Open GA4, go to Reports → Conversions, and see if anything is actually recording. If it's empty, or if it shows numbers that don't match your actual enquiries, the tracking is the problem — not the ads.
2. The landing page is wrong
Sending ad traffic to your homepage is almost always a mistake. Your homepage is designed for people who already know you. Ad traffic is cold — they found you in a search, they're comparing options, and they need a very specific reason to contact you.
A landing page that converts has one job: answer the question the ad promised to answer, and make it easy to take one action. That's it.
3. Keywords don't match intent
Broad match keywords in Google Ads will serve your ads for queries you'd never approve. If you're a removal company in Zurich and you're bidding on "moving" in broad match, you'll get traffic from people searching for moving average indicators, moving meditation, and "moving to Australia from Germany" — none of whom are your customer.
4. Budget is too thin to learn
Google's smart bidding algorithms need conversion data to work. If your budget is so small that you're getting 10 clicks per day, it will take months to accumulate enough data for the algorithm to optimise effectively. A smaller campaign with a higher daily budget, even temporarily, often produces better results than spreading a small budget thin.
How to fix it
In order of priority:
- Verify conversion tracking is working correctly
- Review search terms report — add negatives for anything irrelevant
- Check that the landing page matches the ad's promise
- Review bid strategy — make sure you're not on manual CPC without enough conversion data
If you've done all of this and results still aren't there, it may be a structural problem with how the campaigns were originally built. A free audit will identify exactly what needs to change.