When PMax Brand Exclusions Aren't the Answer: A Strategic View

29 Apr

The default advice for Performance Max is simple: exclude your brand terms. I see it in every “best practice” guide. The logic seems sound. Why pay for clicks you would have received for free from organic search?

This is a neat, tidy rule. It’s also wrong for many eCommerce businesses.

When I was scaling my own stores, I learned that blanket rules are expensive. Following this particular one can leave you vulnerable to competitors and cost you incremental sales. The brands we work with at Elite Brands often find that a more strategic approach to brand traffic inside PMax delivers better overall account performance.

It’s not about bidding on your brand for the sake of it. It’s about making a data-driven decision, not following a default setting.

PMax brand exclusions: when conventional wisdom falls short

The standard argument for excluding brand terms from Performance Max is efficiency. The thinking is that PMax will chase the easiest conversions, which are often existing customers searching for your brand name. This can inflate your ROAS figures without adding new customers.

On the surface, this makes sense. You don’t want to spend money on traffic that was already coming your way. But this view is too simplistic. It assumes your organic position is unassailable and that every brand search has the same intent.

This isn’t always true.

Strategically allowing PMax to bid on your brand can protect your market share, capture high-intent buyers at crucial moments, and even improve overall account efficiency. The key is to move beyond a simple “exclude always” mindset and adopt a more nuanced strategy. Our PMax Optimisation Framework is built on this principle of testing assumptions, not just accepting them.

The goal isn’t just to get a click. It’s to acquire a customer and defend your turf in a competitive marketplace. Sometimes, that means paying for a brand click.

Beneficial scenarios for Performance Max brand traffic

Deciding to include brand terms in PMax isn’t a random choice. It’s a strategic one based on specific market conditions and business goals. I’ve seen this play out across dozens of eCom accounts.

Here are scenarios where it makes sense:

Aggressive competition. If competitors are bidding on your brand name, you need to be there. Leaving the top ad spot open for them is an invitation to steal your customers. You need to defend your search engine results page (SERP).
New product launches. You might have strong brand awareness, but customers don’t know about your new product line yet. A search for “[Your Brand] new shoes” is a high-intent query you want to capture with a specific ad, not just rely on organic SEO.
High competition niches. In crowded markets, the SERP is a battlefield. Even if you rank #1 organically, the page is filled with Shopping ads, text ads, and other features. Occupying as much of that real estate as possible is a solid defensive strategy.
Peak sales periods. During Black Friday or Christmas, search behaviour changes. Customers are looking for deals. A brand search combined with “sale” or “discount” is a conversion waiting to happen. PMax can capture this demand effectively.
Inconsistent organic rankings. Don’t assume you’re always #1. SEO rankings can fluctuate. If your organic spot for key brand terms sometimes drops to #2 or #3, a paid ad ensures you remain at the top of the page.
Simplified campaign management. For smaller teams, consolidating brand and non-brand efforts into a single, well-optimised PMax campaign can be more efficient than managing separate campaigns. This is just one part of effective Google Ads management.

Letting PMax handle brand traffic in these situations isn’t lazy. It’s a calculated decision to maximise reach and protect revenue.

Measuring incremental value over PMax brand cannibalisation

The biggest fear with bidding on your own brand is cannibalisation. Are you just paying for sales you would have gotten anyway? To answer this, you need to measure incremental value.

Incremental value is any conversion, revenue, or new customer that you would not have acquired without the ad. It’s the true measure of an ad’s success, not just the last-click ROAS reported in the platform.

The first step is to accept that some cannibalisation is inevitable. The real question is whether the incremental gains outweigh the cost of that overlap. We’ve seen cases where including brand terms lifted total new customer acquisition by 15-20%, a result that justifies the spend. You can see how we track these metrics in our results. If you’re unsure how to set up this kind of detailed analysis for your own brand, a Google Ads audit can help identify where to focus your efforts and ensure your tracking is robust.

Setting up your cannibalisation analysis

You can’t manage what you don’t measure. A proper analysis requires a structured approach.

First, establish a baseline. Before you change your brand exclusion settings, document your performance over at least 30 days. Record your total sales, new customer rate, organic traffic from branded queries, and overall account ROAS.

Next, run a controlled test. The best way to do this is with a geo-experiment, splitting your audience by location. One group sees ads from a PMax campaign with brand terms included, the other does not. If a geo-split isn’t feasible, a pre-post time-based analysis can work, but be mindful of seasonal factors. You can find more information on setting these up in the official Google Ads Help page on experiments.

Finally, analyse the results in Google Analytics 4. Look beyond the Google Ads UI. Compare the total conversions and revenue for the entire business in the test and control groups. Did total sales increase, or did you just shift conversions from organic to paid? That is the question you need to answer.

Brand strength and competitive landscape in PMax strategy

Your decision on brand exclusions also depends heavily on two factors: how strong your brand is and how aggressive your competitors are.

A new or emerging brand has a different set of challenges than an established market leader. If you’re still building brand recognition, every brand search is precious. You likely need a strong defensive position to ensure those hard-won searchers find you, not a competitor.

Conversely, a household name with immense brand loyalty might find that their organic listing is sufficient to capture the vast majority of searchers. Their customers are not easily swayed by a competitor’s ad.

The competitive landscape is just as important. We use tools like Semrush to analyse who is bidding on our clients’ brand terms. If the coast is clear, you have more flexibility. If two or three competitors are consistently showing up for your brand name, excluding your brand from PMax is a risky move.

This isn’t just a Google Ads problem. A strong brand and competitive awareness are crucial for your entire marketing ecosystem, including your Meta Ads management. A customer journey often involves multiple touchpoints across platforms.

Assess your situation honestly. Are you the dominant player, or are you fighting for every sale? The answer will help guide your PMax brand strategy.

Testing and validating your Google Ads brand exclusions strategy

There is no permanent answer. The right strategy is the one that is tested, validated, and continuously monitored.

Start with a clear hypothesis. For example: “Including brand terms in PMax will increase our total new customer acquisition by 10% without decreasing overall account ROAS below 4:1.”

Use Google Ads experiments to run a controlled test for 4-6 weeks. This allows the algorithm enough time to learn and for you to gather statistically significant data. Accurate data is everything here, which is why a proper Enhanced Conversions Setup is non-negotiable.

Key data points for validation

While the experiment is running, monitor these metrics closely:

Conversion rates: Compare the conversion rate of branded queries within PMax to your organic brand conversion rate. Are the paid clicks converting at a similar or higher rate?
CPA and ROAS: Look at these metrics for the campaign, but more importantly, for the account as a whole. A PMax campaign with brand terms will naturally have a high ROAS. Don’t let that fool you. The critical metric is the total account ROAS. Did it go up or down?
New vs. Returning Customers: Is the campaign bringing in new buyers or just converting existing ones? Segment your conversion data to find out.
Impression Share: Keep an eye on your search impression share for your top brand terms. Your goal should be to maintain over 95% impression share at the top of the page.

After the test, analyse the data. If your hypothesis was correct and overall performance improved, you have a winning strategy. If not, you can confidently revert to excluding brand terms, knowing you made a decision based on data, not a generic rule.

Beyond PMax brand exclusions: A strategic path forward

The “always exclude brand” rule for Performance Max is a shortcut. It’s an easy answer that avoids the harder work of testing and analysis.

A more sophisticated approach recognises that brand traffic is a strategic asset. Sometimes it needs defending. Sometimes it’s the most effective way to announce a new product. Sometimes it’s simply the cost of doing business in a competitive market.

The right answer for your business isn’t found in a blog post. It’s found in your own data.

Stop applying blanket rules. Start building a strategy tailored to your brand strength, your competitive landscape, and your business goals. Run the tests, analyse the numbers, and make an informed decision.