"The campaigns bring traffic but not sales" is probably the sentence I hear most often after the first one. Almost always the cause is not the channel: it is one or more links in the chain that leads from the click to the conversion.
First rule: before optimizing, verify what you are really measuring
I have seen accounts where the conversion pixel counted every visit to the confirmation page, including those of people coming back with the browser back button, or where a form submit event fired even on a validation error. In these cases, optimizing the campaign on conversion data means optimizing on a wrong number, which can lead the platform to spend more on audience segments that do not convert at all.
The first step, always, is to check in Google Analytics or in the conversion manager that the recorded event corresponds exactly to the action that has value for the business: a completed sale, a qualified lead, an actual call.
The most common problem: mismatch between search, ad and landing page
If someone searches for "bathroom renovation quote near me" and the ad takes them to the generic home page of the site, they have already lost interest before starting to read. The same goes if the ad promises a discount that is then not visible on the destination page: the user feels misled and leaves, often within a few seconds.
The rule is simple to state and hard to respect at scale: the ad message, the keyword that triggered it and the content of the first screen of the landing page must tell the same story, using the same words when possible.
The landing page that leaks the traffic you pay for
Even with a perfect match between search and ad, a landing page that is slow, unclear about what to do next or full of distractions (full navigation menu, links to other pages, too many form fields) leaks a significant part of the paid traffic. On mobile, where the majority of Google Ads traffic arrives in many sectors, loading times matter more than on desktop.
Bid strategy: when it is the cause, when it is only the symptom
It is tempting to blame the bid strategy when results do not come, but an automatic strategy such as "maximize conversions" works well only if it receives reliable conversion data. If tracking is imprecise, changing bid strategy does not solve the problem: it moves it, because the algorithm will keep optimizing on a wrong signal, only with a different method.
The method I use to diagnose, in order
- Verify that the tracked conversion events correspond to actions of real value, not to imprecise proxies.
- Check the match between the actual search terms (not just the keywords set up) and the ads shown.
- Analyze behavior on the landing page: time on page, scroll, drop-off point in the form.
- Only at this point look at budget, bids and campaign structure.