What we walked into
This client is a B2B SaaS company selling event management software to organizations that plan conferences, summits, and tradeshows. When we took over the Google and Bing Ads accounts, the business was operating in a relatively stable auction environment. CPCs were manageable at around $18, the campaigns were generating roughly 38 conversions per quarter, and cost per conversion sat at $2,500. The account was functional but not efficient, and there was meaningful room to sharpen targeting and improve what happened after the click.
Then COVID reshuffled the entire event industry. As in-person events collapsed and virtual formats exploded in popularity, a wave of new competitors entered the auction almost overnight. Software vendors who had never run paid search before suddenly had budget to spend, and existing players increased their bids to defend market share. Average CPCs climbed steadily, reaching $31 by Q1 2024. In that environment, doing nothing would have meant watching cost per conversion drift upward while conversion volume stagnated or declined.
The stakes were straightforward: if we couldn't improve conversion rate faster than CPCs were rising, the economics of paid acquisition would deteriorate and the client would either scale back spend or pay materially more for the same pipeline. Over three-plus years, that pressure was constant. Every quarter of rising CPCs was a quarter that demanded a measurable offset somewhere in the funnel, whether in click quality, landing page performance, or bid efficiency.
What we changed
- We rebuilt the keyword sets around high-intent commercial terms, pruning broad informational queries and expanding exact and phrase match coverage for searches that indicated active software evaluation.
- We layered aggressive negative keyword expansion on a rolling monthly cadence, preventing budget from flowing to adjacent event-industry searches that generated clicks but rarely converted.
- We ran structured A/B tests on ad copy in every major campaign, isolating headlines that addressed specific buyer pain points, and rotated out underperformers on a four-to-six week cycle to steadily raise click-through quality.
- We worked directly on landing page messaging and layout to align the post-click experience with the intent signals in each ad group, targeting the specific CVR gap between arriving on the page and submitting a qualified lead form.
- We reallocated budget monthly toward the keyword segments producing the strongest conversion rates, pulling spend from high-CPC, low-CVR terms regardless of impression share, so the account's average cost per conversion fell even as the auction became more expensive.
What happened next
The first metric to move was conversion rate. As we tightened match types, cut waste through negatives, and aligned landing pages more closely to the intent of each search, CVR climbed from 1.2% to 4.7% between Q1 2021 and Q1 2024. That improvement happened against a backdrop of average CPCs rising from $18 to $31, which means the auction was working against us the entire time. The CVR gains were not incremental; they were the primary mechanism that kept the account's unit economics from deteriorating.
Conversion volume followed the CVR improvement upward. Quarterly conversions grew from 38 in Q1 2021 to 142 in Q1 2024, nearly a fourfold increase. That growth came without a proportional increase in spend, because the budget reallocation work kept dollars concentrated on the terms most likely to produce a qualified lead. Paying more per click for the right keyword, while eliminating spend on the wrong ones, is a different outcome than simply paying more per click across the board.
The headline result is cost per conversion falling from $2,500 to $1,200 over the same period, a reduction of more than 50%. That outcome is notable specifically because it happened while CPCs nearly doubled. The gap between what the auction demanded per click and what we paid per conversion widened in our favor because conversion rate improved faster than click costs rose. Three years of continuous testing, refinement, and reallocation compounded into a result that would not have been achievable through any single change.
The takeaway
In a B2B SaaS auction where CPCs are rising due to external demand shocks, cost per conversion is not primarily a bidding problem. It is a conversion rate problem. If you can improve CVR faster than CPCs climb, the unit economics improve even as the auction gets more expensive. The mechanism that makes that possible is relentless, granular work: tighter keyword sets, aligned landing pages, disciplined budget reallocation, and enough testing cadence to actually move conversion rate over months rather than quarters.