

How to Structure Google PMAX Campaigns for Better Control and Performance
How to Structure Google PMAX Campaigns for Better Control and Performance
Getting the most from Google Performance Max (PMAX) campaigns often comes down to how you structure them. PMAX blends Google’s automation with your creative and strategic inputs. So the better you organize, the more likely you are to achieve robust results while avoiding common pitfalls like wasted spend and loss of brand vision.
I’ve worked extensively with PMAX since its earliest roll-outs, and the difference between a scattergun approach and a thoughtfully designed campaign has been night and day. If you want the machine to work for you, not against you, planning is everything.
Let’s explore the actionable strategies for structuring your PMAX campaigns so you maintain control, drive higher performance, and shine a light on what’s really happening inside the Google Ads “black box.”
Segmenting Asset Groups: Product Categories, Funnel Stages, and Intent
The foundation of effective PMAX campaigns is how you segment asset groups. Google allows you to create up to 100 asset groups per campaign, but quantity doesn’t guarantee quality. Instead, focus on meaningful segmentation. There are three time-tested approaches:
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Product Category Segmentation
– Divide asset groups by unique product categories or types. For example, create an asset group for running shoes, another for sandals, and another for hiking boots if you’re in footwear retail. This clarity guides Google’s AI to serve more relevant ads and creators tailored experiences. -
Funnel Stage Segmentation
– Segmenting by funnel stage allows you to target your prospective audience differently depending on where they are in their journey. Top-of-funnel groups might highlight broad benefits, while bottom-of-funnel groups focus on promotions and urgency. This can result in a smoother, more efficient conversion path. -
Intent-Based Segmentation
– Use signals such as site behavior (eg. viewed product, added to cart, repeat site visits) to build asset groups around intent. People with high purchase intent can be directed to tailored ads and offers. This can reduce wasted impressions and improve efficiency.
Drawing from experience, using product categories for e-commerce and funnel stages for lead gen has delivered sharper targeting and less overlap. Regularly review your data and experiment with these structures; don’t hesitate to split or merge groups as campaigns evolve.
Mastering Audience Signals and Exclusions
While PMAX leans on automation, your inputs remain valuable. Especially audience signals. These signals are suggestions that help Google’s AI learn faster who your best prospects are. When you input first-party data, such as top-converting customer lists or retargeting audiences, you give the system a head start toward your true business goals.
But don’t leave everything to the algorithm. Carefully exclude audiences that are irrelevant or already saturated. For instance, if you’re running separate campaigns for new customer acquisition, exclude existing customers from your PMAX campaign to avoid cannibalization and skewed reporting.
Test different audience signals. Experiment with:
– Custom segments based on searched keywords
– Lookalike audiences from converters
– Behavioral cohorts that indicate strong buying intent
Over time, the data paints a clearer picture of which signals drive returns. I’ve often seen a blend of broad audience signals and sharp exclusions drive the most efficient growth, especially when iteratively updated with fresh CRM data or insights from your analytics stack.
Techniques to Limit Brand Cannibalization and Protect Your Core Terms
Brand cannibalization is a real concern with PMAX campaigns, especially if you have active Search campaigns targeting branded queries. PMAX by default will aggressively seek conversions. Even from your own brand, sometimes at the expense of Search or Shopping ROAS.
To address this, apply these proven techniques:
- Use brand exclusions: Google has rolled out the ability to exclude specific keywords, including brand terms, within PMAX. Set up these exclusions to ensure your standard Search campaigns keep control over branded search.
- Negative keyword management: This can be layered at the campaign or account level. Adding negative keywords for your core brand phrases in PMAX means those queries will default to your Search campaigns, preserving their accuracy and reporting.
- Separate campaign structures: Create dedicated PMAX campaigns for prospecting and high-intent acquisition, keeping them apart from brand-driven traffic. Tailor your goals and asset groups within these campaigns so that new-customer reach and brand protection aren’t working at cross-purposes.
Over several PMAX account audits, these steps consistently led to better transparency, with standard Search campaign metrics reflecting the true impact of your brand terms. Rather than muddying the waters with duplicate reporting or cannibalized spend.
Structuring for Transparency and Reporting Clarity
Campaign chaos yields murky results. PMAX’s inherent automation can make it tricky to see which placements drive value, but structure brings order and visibility. Consider these guiding principles:
- Logical naming conventions: Use clear, consistent naming for campaigns and asset groups reflecting their segmentation. Such as “Shoes – Top Funnel” or “Winter Sports – Purchase Intent.” This speeds analysis and helps teams stay on the same page.
- Purpose-driven grouping: Tie each asset group to a specific goal or audience. If a group’s purpose becomes unclear due to overlap or drift, it’s time to restructure.
- Frequent reviews: Take advantage of Google’s evolving transparency in PMAX. Recent updates mean you can now view breakdowns by channel performance, top search categories, and asset group results. Don’t just skim; review these details to identify underperformers or surprise winners.
The greatest benefit I’ve seen is the ability to make informed, quick adjustments. A well-structured campaign doesn’t just improve reporting for stakeholders. It uncovers actionable insights you’d otherwise miss.
Leveraging Data Insights for Continuous Improvement
A static PMAX structure won’t cut it in a dynamic market. The best-performing advertisers use data as their compass, iterating on their campaign structure as results come in.
Start by reviewing key performance indicators:
– Conversion rate by asset group
– ROAS segmentation based on audience signal
– Impressions or spend by channel (Shopping, Display, Video)
When results flag, dig into the asset group and signal mix. Don’t be afraid to pause underperforming asset groups or create new ones to test a fresh approach. For instance, separating a new customer group from repeat buyers can often reveal lucrative untapped segments.
I’ve worked with brands that saw marked improvements in cost efficiencies by making monthly tweaks. Splitting out asset groups, shifting budgets according to data, or refining audience signals. PMAX rewards experimentation; the advertisers who test most often, improve most quickly.
Bringing It All Together: Take Control, Drive Results
The secret to higher-performing Google PMAX campaigns lies in thoughtful structure. In every asset group, in the way you apply audience insights, and in your constant adaptation to the data. Automated bidding and creative optimization don’t mean less control. They simply raise the bar for strategic inputs.
Segment your campaigns carefully, give Google’s AI a strong sense of direction with audience signals and exclusions, keep an eagle eye on brand cannibalization, and analyze the results with a critical mindset. The more intentional your setup, the more clarity and accountability you’ll enjoy, and the more confident you’ll feel steering PMAX to success.
Ready to move beyond guesswork and start seeing sharper results? Start refining your PMAX structure today. Your performance and budget control depend on it.
Frequently Asked Questions
How many asset groups should I create in a PMAX campaign?
It’s best to align asset groups with distinct product categories, funnel stages, or intents. Typically between five and fifteen per campaign for most brands. Too few, and you lose precision; too many, and optimization becomes unwieldy. Always monitor performance and adjust as needed.
Can I fully exclude brand keywords from PMAX campaigns?
Yes, Google now enables you to exclude specific brand keywords from PMAX. Set up negative keywords and brand exclusions at the campaign level to ensure your branded queries perform in dedicated Search campaigns instead.
What’s the role of audience signals in campaign performance?
Audience signals act as directional cues for Google’s machine learning. When you supply high-quality customer lists, behavioral segments, or lookalikes, PMAX finds valuable audiences faster. They don’t restrict PMAX, but they power performance by nudging it in the right direction.
How often should I restructure or adjust my PMAX campaigns?
The most successful advertisers revisit and refine their structure at least monthly. Use reporting insights to split underperformers, test new signals, or regroup asset groups based on fresh trends and shifts in demand.
Is it possible to view detailed reporting inside PMAX?
Reporting has improved with channel and asset group breakdowns now available. Naming asset groups clearly and maintaining tidy segmentation makes it much easier to act on these insights and share clarity with stakeholders.