Most Google Ads accounts I audit have the same problem. They’ve grown organically over time — a campaign added here, an ad group added there — until you end up with a sprawling structure that looks thorough but is quietly killing performance.
The irony is that more campaigns usually means worse results. Here’s why, and what to do about it.
The problem with too many campaigns
Google’s Smart Bidding — the algorithm that decides when and how much to bid for each auction — needs data to work. Specifically, it needs conversion data. The more conversions a campaign sees, the better it gets at predicting which searches are worth bidding on and which aren’t.
When you split your budget across too many campaigns, each individual campaign sees fewer conversions. The algorithm doesn’t have enough signal to learn from. It ends up guessing more than it’s optimising.
I’ve seen accounts with 80, 90, even 120 campaigns running simultaneously. In most cases, the majority of those campaigns were generating fewer than 5 conversions a month — well below the threshold Google needs to make Smart Bidding work effectively.
What “too complex” looks like in practice
A client came to me with a Google Ads account that had grown over several years. On paper it looked impressive — highly segmented, meticulously organised, separate campaigns for every product line, location, match type and device.
In practice, the account needed a team of people and a suite of scripts just to keep bids updated. The machine learning had no room to operate because every decision was being made manually or by automation built to compensate for the structural problem rather than fix it.
The account was spending significantly, but the cost per acquisition had crept up year on year as the structure became harder to manage and the algorithm got less and less signal per campaign.
The fix: consolidation
The solution is almost always consolidation — fewer campaigns, more data per campaign, smarter bidding.
In the case above, we cut the number of campaigns by 80%. That’s not a typo. We went from a very large number of campaigns down to a small, focused set — each one now receiving enough conversion data for Smart Bidding to actually learn.
The results came quickly. Within a few months:
- New users up 50%
- SEM spend down 30%
- The team required to manage the account dropped from 5 people to 2
The account didn’t just perform better — it became dramatically easier and cheaper to run.
How to know if your account has this problem
Ask yourself these questions:
How many campaigns are getting fewer than 30 conversions a month? If it’s most of them, you have a data fragmentation problem.
How many people does it take to manage your account? If the answer is more than one or two for a single-market account, the structure is probably the reason.
When did you last consolidate? If the account has been growing for years without a structural review, the answer is probably never.
Are your bids set manually or via scripts? If you’ve built automation to compensate for a structural problem, the structure is the thing to fix.
A word on match types
One of the most common causes of over-fragmentation is running separate campaigns for broad match, phrase match and exact match keywords. This made sense years ago. It makes much less sense now.
Google’s matching has changed significantly, and the algorithm is genuinely better at determining intent than it used to be. In most accounts, consolidating match types — running broader match types with Smart Bidding rather than controlling everything via exact match — improves performance and simplifies management.
This isn’t universal. There are cases where tighter control makes sense. But if you’re running three campaigns for every keyword just to maintain match type separation, it’s worth questioning whether that structure is still serving you.
The right structure depends on your business
There’s no single right answer for every account. The right structure depends on your budget, your conversion volume, your product range and your goals.
What I’d say universally is this: if your account has grown without a structural review, there’s almost certainly an opportunity to simplify it and improve performance at the same time. The two go together more often than people expect.
If you’d like a second opinion on your account structure, the discovery call is a good place to start.