When a Google Ads account underperforms, the issue is often blamed on bidding strategy, budget, or creative. Sometimes that’s fair. But in many cases, the root cause is much more fundamental: poor keyword intent management.
One of the most common and costly mistakes I see in Google Ads accounts is mixing informational and transactional keywords within the same campaign or ad group.
On the surface, it may not seem like a major issue. After all, traffic is traffic, right?
Not quite.
In reality, blending different types of search intent can dilute performance data, confuse Google’s automation, inflate costs and reduce return on ad spend. If you’re serious about making Google Ads work efficiently, understanding and separating keyword intent is essential.
This post explains what informational and transactional keywords are, why mixing them creates problems, and how to structure your account correctly to avoid performance drag.
Understanding Search Intent
Search intent refers to the reason behind a user’s query. What are they trying to achieve when they type something into Google?
Broadly speaking, we can categorise intent into four groups:
- Informational
- Navigational
- Transactional
- Commercial investigation
For the purposes of this article, we’re focusing on the first and third categories: informational and transactional.
Informational Keywords
Informational keywords are used by people who are looking for knowledge. They are researching, learning, or exploring.
Examples include:
- “what is performance max”
- “how does google ads work”
- “benefits of running shoes”
- “google ads quality score explained”
These searches signal curiosity or early-stage research. The user is not necessarily ready to buy. They want answers, not a checkout page.
In many cases, these searches are best suited to organic content, blog posts or YouTube videos rather than direct-response paid campaigns.
Transactional Keywords
Transactional keywords indicate that someone is ready to take action. They want to buy, sign up, book, or request a quote.
Examples include:
- “buy running shoes online”
- “google ads agency london”
- “ppc management pricing”
- “hire ecommerce marketing agency”
These users are further along the decision-making journey. They have intent to transact, not just to learn.
This is where Google Ads can truly shine.
Why Mixing Intent Causes Problems
When you place informational and transactional keywords together in the same campaign or ad group, several issues emerge.
1. Distorted Performance Data
Let’s say you run a campaign targeting both:
- “what is google ads”
- “google ads management services”
The first query will likely generate traffic at a lower cost per click, but it may convert poorly. The second may cost more per click but convert at a higher rate.
If both sit in the same ad group:
- Your average conversion rate becomes misleading.
- Your cost per conversion appears inflated.
- Your return on ad spend becomes harder to interpret.
Instead of seeing two distinct patterns, you see a blended average that hides what is really happening.
This makes optimisation more difficult.
2. Confused Bidding Strategies
Modern Google Ads campaigns often rely on automated bidding strategies such as Target CPA or Target ROAS.
These systems learn from conversion data. If you mix high-intent and low-intent traffic together, you feed the algorithm inconsistent signals.
Imagine half your clicks convert at 8% and the other half convert at 1%. The algorithm must try to find a single bid strategy to cover both.
The result?
It may overbid on informational queries or underbid on high-value transactional queries. Either way, performance suffers.
Automation works best when intent is clear and consistent.
3. Lower Ad Relevance
Informational and transactional searches require very different messaging.
For example:
Someone searching “how does google ads work” needs education and explanation.
Someone searching “google ads agency near me” needs credibility, pricing reassurance and a clear call to action.
If both keywords sit in the same ad group, what ad do you write?
- If you focus on education, you weaken your sales message.
- If you focus on selling, you mismatch the informational query.
Either way, relevance drops. That can impact click-through rate and Quality Score.
4. Landing Page Mismatch
Intent should dictate landing page choice.
Informational keywords are usually best served by:
- Blog content
- Guides
- FAQs
- Educational resources
Transactional keywords should drive users to:
- Service pages
- Product listings
- Booking forms
- Quote request pages
When both types share the same landing page, you compromise the experience.
Send informational traffic to a hard-sell service page and users bounce.
Send transactional traffic to a long educational article and they may leave before converting.
The Financial Impact of Mixing Intent
Beyond theoretical best practice, there is a real cost implication.
Informational keywords often:
- Generate higher impression volumes
- Have lower average CPCs
- Produce lower conversion rates
Transactional keywords often:
- Have lower volume
- Have higher CPCs
- Produce stronger conversion rates
If you blend them, informational traffic can:
- Consume a disproportionate share of the budget
- Inflate overall CPA
- Reduce impression share for high-intent queries
Over time, this erodes profitability.
In e-commerce accounts, I have seen mixed-intent campaigns where 60% of spend was going to early-stage research queries that had almost no direct revenue impact.
Separating intent can dramatically improve efficiency.
How to Identify Informational vs Transactional Keywords
It’s not always obvious which category a keyword falls into, but there are clear patterns.
Informational Modifiers
Look for words such as:
- what
- how
- why
- guide
- tips
- examples
- meaning
- definition
- tutorial
- review (sometimes commercial investigation rather than fully transactional)
These are often early-stage.
Transactional Modifiers
Look for words such as:
- buy
- price
- cost
- near me
- hire
- services
- agency
- book
- discount
- order
These indicate readiness to act.
Your Search Terms report is critical here. Don’t just evaluate keywords at the keyword level. Analyse real user queries and categorise them by intent.
Structuring Campaigns Correctly
The solution is straightforward: separate campaigns (or at least ad groups) based on intent.
Option 1: Separate Campaigns by Intent
This is usually the cleanest approach.
For example:
Campaign 1: Transactional – Core Services
Campaign 2: Informational – Research & Education
Advantages:
- Separate budgets
- Separate bidding strategies
- Clear performance reporting
- Better control
You might use Target CPA on transactional campaigns and Maximise Clicks (with caution) on informational campaigns, depending on your objective.
Option 2: Separate Ad Groups (Minimum Acceptable)
If budget is limited, you can separate intent at ad group level. However, this is less ideal because bidding and budget control remain blended.
Still, it is better than mixing everything together.
Should You Bid on Informational Keywords at All?
This is an important question.
In many cases, the answer is no.
If your goal is direct response performance, informational keywords often deliver poor immediate return.
However, there are scenarios where they make sense:
- You are building remarketing audiences.
- You have strong educational content that nurtures leads.
- You operate in a long sales cycle industry.
- You want to dominate visibility across the funnel.
But even then, they should be strategically isolated.
Do not let top-of-funnel traffic distort bottom-of-funnel metrics.
The Role of Match Types
Broad match can blur intent more easily than phrase or exact match.
For example, targeting:
“google ads agency”
with broad match may trigger searches like:
- “what does a google ads agency do”
- “google ads agency salary”
- “how to start a google ads agency”
These are informational, not transactional.
Without strong negative keyword management, you end up paying for traffic that doesn’t align with your objective.
Careful Search Terms monitoring and proactive negative keyword implementation are essential to maintaining intent purity.
Practical Example: Service-Based Business
Let’s imagine a UK-based PPC agency running a Search campaign.
Mixed-Intent Ad Group:
Keywords:
- google ads agency
- what is google ads
- google ads pricing
- how much does google ads cost
Single ad driving to a services page.
Results after 30 days:
- Conversion rate: 3.2%
- CPA: £145
- CTR: 5.8%
After separating intent:
Transactional campaign:
- google ads agency
- google ads management services
- ppc agency london
- google ads pricing
Informational campaign:
- what is google ads
- how does google ads work
- google ads explained
Now:
Transactional campaign:
- Conversion rate: 7.4%
- CPA: £82
- CTR: 8.9%
Informational campaign:
- Conversion rate: 0.9%
- CPA: £310
- CTR: 4.1%
The blended numbers previously masked the strength of the transactional campaign. Once separated, bidding could be adjusted properly and budget allocated more efficiently.
The informational campaign may still have strategic value, but it is now clearly measured.
E-commerce Example
In e-commerce, mixing intent is equally dangerous.
Consider a retailer selling trainers.
Mixed keywords:
- best trainers for running
- how to choose running shoes
- buy running shoes online
- mens running trainers sale
The educational searches attract browsers, not buyers.
If both sets are placed in one campaign with Target ROAS bidding, the system may struggle to hit targets because half the traffic isn’t ready to convert.
By isolating transactional keywords:
- ROAS improves
- Impression share on purchase-ready queries increases
- Budget allocation becomes rational
Common Objections
“But informational traffic converts eventually.”
Sometimes it does. But that’s what remarketing is for.
You can:
- Capture visitors via informational campaigns
- Build remarketing lists
- Target them later with stronger commercial messaging
This is far more efficient than forcing one campaign to serve all intents at once.
“Broad match handles intent automatically.”
Broad match has improved significantly, but it is not perfect.
Google’s systems interpret intent based on signals. If your account sends mixed signals, results will vary.
Automation thrives on clarity.
How to Audit Your Account for Intent Mixing
If you want to identify whether this is happening in your account, follow this process:
- Pull Search Terms data for the last 60–90 days.
- Categorise queries manually into informational and transactional.
- Calculate spend and conversion rate by intent category.
- Identify campaigns where both categories appear heavily.
- Evaluate whether performance improves after separation.
This exercise often reveals that a surprising amount of budget is allocated to low-intent traffic.
Key Takeaways
- Informational and transactional keywords serve different user needs.
- Mixing them distorts performance data and confuses bidding strategies.
- Ad messaging and landing pages cannot effectively serve both intents simultaneously.
- Budget allocation becomes inefficient when intent is blended.
- Separate campaigns allow cleaner optimisation and clearer reporting.
Google Ads success is not just about bids and budgets. It is about structure.
When your account structure reflects user intent, everything becomes easier:
- Reporting is clearer.
- Automation performs better.
- CPA targets are more achievable.
- ROAS improves.
If your campaigns are underperforming, look beyond the surface metrics. Ask yourself a simple question:
Are you mixing informational and transactional keywords?
If the answer is yes, separating them may be one of the fastest and most effective optimisations you can make.