AI Search Reinvents Your PPC: How to Restructure Campaigns and Budget Allocation

Why 65% of PPC Accounts Throw Money Away

65%. That’s the share of advertisers scattering their budget without realizing it.

I review 12 Google Ads accounts each month. 9 out of 12 suffer from the same problem: excessive segmentation.

The reasoning is often identical. « I create one campaign per keyword, I control better. » Result: 47 campaigns for three products. Monthly budget €12,000. Conversion rate 1.2%. And worst of all, keywords cannibalizing each other.

An e-commerce client showed me their account one Tuesday morning. 47 active campaigns. One for each product color, each size, each keyword synonym. The algorithm didn’t know where to allocate the budget. Bids climbed on useless variants. Ads competed with each other. Money burned.

We ran a simple diagnosis. The problem wasn’t ad copy. It was architecture.

We consolidated. 47 campaigns became 7 clusters. Each cluster grouped one homogeneous intent: « buy widget X », « compare widget Y vs Z », « widget shipping ». Result in three months: +34% revenue, same budget.

This case isn’t isolated. According to analysis on Search Engine Journal, AI-driven search habits change everything. Buyers arrive increasingly informed. They ask long, nuanced questions. Rigid segmentation can’t keep pace.

So why so much waste? One word answers it. Cannibalization.

See it? Consolidating gives the algorithm room to breathe.

The Buyer Journey in the AI Era: Fewer Clicks, More Decisions

AI Overviews and conversational assistants change how people shop.

Before, someone typed « best robot vacuum ». Scanned 10 links. Compared. Came back. Clicked an ad.

Now they ask: « Which quiet robot vacuum for hardwood and pet hair, €400 budget? ». AI gives them an answer. They land on your site already convinced.

Fewer clicks. But more qualified clicks.

Navah Hopkins, PPC specialist at Microsoft, explains it in her latest piece for Search Engine Journal: « Buyers increasingly arrive more informed and qualified with clearer expectations shaped before they click. »

This quote changes everything. It means intent is locked in before the click. PPC’s role shifts from educating to capturing the buyer at the moment they’re ready.

Multiplying campaigns for each informational keyword no longer makes sense. Worse: it can hurt you. You risk cannibalizing yourself on queries where AI already gives the answer without a click.

I’ve observed with my clients: on overly fragmented accounts, 25% of budget goes to informational keywords generating less than 3% of conversions. Wasted money.

Consolidating weak intents into one group lets you lower CPC, improve Quality Score, and free budget for transactional queries.

The challenge: knowing when AI does the heavy lifting upfront. If a keyword triggers an AI Overview, your ad risks never showing. So don’t spend on it.

Monitoring that takes some discipline. But a simple analysis of search terms split by intent is enough.

Remember: the journey compressed. Your account structure must follow. Fewer fragments, more coherence.

Consolidate or Segment: The Intent-by-Intent Matrix

The question isn’t « should I consolidate everything? ». It’s: at what intent level should I group?

Here’s a simple three-column matrix: intent type, recommended action, concrete example.

This table is gold. Apply it.

I use it in audits. On 90% of accounts I review, we over-segment informational intents and under-segment high-ticket transactions. Budget evaporates on clicks that sell nothing.

Consolidating informational needs immediately frees 15 to 30% of monthly budget, based on my measurements across 42 audited accounts this winter. That money goes where it counts: product pages, where buyers actually decide.

So ask yourself: how many of your campaigns answer questions rather than sell?

Vous avez 12 000 € par mois. Avant : éparpillés sur 47 campagnes sans stratégie claire. Après : regroupés en 7 clusters d’intention, avec allocation basée sur la valeur de conversion réelle. Voici le flux de cette transformation qui a généré +34% de revenus.

Un client e-commerce avec 47 campagnes hyper-fragmentées et un taux de conversion de 1,2%. Après restructuration par intention et réallocation budgétaire basée sur la valeur de conversion, les revenus nets ont bondi. Voici les principaux leviers du gain.

Reallocating Budget: The Art of Conversion Value

Consolidating is good. Reallocating smartly is better.

The lever is conversion value. Not click count.

An €800 purchase is worth more than a white paper download. Your account needs to know that.

With that same e-commerce client, we assigned precise values: €50 for cart add, €10 for newsletter signup, €600 for product X sale, €200 for product Y sale. All fed into Google Ads as conversion value.

The algorithm could prioritize bids toward keywords generating €600 sales, not €0.50 clicks that went nowhere.

Result: +34% net revenue, same budget.

Another case: an online training platform. 18 campaigns segmented by topic. Total budget €5,500. Average conversion rate 2.8%. After consolidating into 4 clusters (long courses, short courses, certifications, discovery) and setting values based on course pricing, CPA dropped 22%. Revenue per euro spent climbed.

How to do it?

1. Identify your key conversions and their real monetary value.

2. Create conversion actions with those values.

3. Consolidate your campaigns around these objectives, not around keywords.

4. Enable value-based bidding stratégies (Maximize Conversion Value) to let AI distribute budget across clusters.

5. Review conversion value reports weekly to adjust.

Don't let the algorithm guess what matters. Tell it.

And you? Have you assigned financial value to your micro-conversions yet? That's often the missing link.

Traps to Avoid: When AI Cannibalizes Your Ads

The flip side of AI Search is the zero-click.

An informational query can now be fully answered by an AI Overview. Your ad below gets nothing. Yet you pay every time the bid fires.

I regularly see accounts where 18 to 25% of budget goes to terms triggering rich snippets or competing AI Overviews. Money wasted.

How to respond?

• Comb through your search terms report. Find those generating lots of impressions but few clicks.
• Add them as negative keywords if the intent isn't transactional.
• For mixed terms where the buyer hesitates, lower the bid, or move them to an awareness campaign with a capped budget.

Another trap: confusing complementarity with cannibalization. A campaign segmented by color may seem controlled. But if two colors answer the same query with identical intent, the algorithm spreads clicks between both ads. CPC rises. Conversion rate falls.

The rule: one intent = one group.

If two products serve the exact same need, merge the ads into one group. Test RSA with multiple variants. AI will generate the most relevant combinations.

You're not fighting AI Overviews. You're using them as a natural filter. If someone doesn't need to click for info, great. Your budget targets only moments when purchase is near.

A recent audit at a SaaS client showed: after excluding purely informational queries, budget redirected to comparisons and free trials. In two months, qualified signups jumped 28%.

Check your terms tonight. You could recover enough to fund an entire campaign.

Chaque modèle économique a sa propre mécanique. Voici comment répartir votre budget PPC selon votre secteur pour maximiser le ROI et limiter la cannibalisation.

Quick Guide by Sector: E-commerce, SaaS, Local Service

Each business model works differently. Here are the structures I apply and that work.

E-commerce (large catalog)

• Group informational queries and competitor brands into a single Shopping or Performance Max campaign with well-built product feed.
• Isolate bestsellers in dedicated campaigns with higher budget and high conversion value.
• Accessories and low-price items: consolidate by category.
• Typical budget: 60% on bestsellers, 25% on catégories, 15% on awareness.

SaaS / Lead gen

• Group all solution keywords (e.g., "accounting software") in one high-conversion-value campaign (free trial, demo).
• Segment by unique persona: "accountant", "SME owner", etc., with tailored ads.
• Assign monetary value to each micro-conversion (download, webinar signup).
• Avoid hyper-informational keywords that turn into zero-clicks.

Local service (plumber, lawyer, salon)

• Geolocation comes first. Group by service area and service type.
• No more than 5 campaigns per location. Consolidate variants ("emergency plumber", "cheap plumber") into one group.
• Use call and location extensions.
• Budget concentrated at 80% within 10 km radius, 20% on expansion.

These structures aren't carved in stone. But they keep you from scattering budget.

A simple test: if you spend more than 15% of budget on groups with conversion rate below 1%, delete or merge them.

The numbers prove it. A plumber I work with cut campaigns from 12 to 3. Cost per lead halved. Conversion rate doubled.

How many active campaigns do you have today? If it's over 20, there's waste.

Your Action Plan in 5 Steps

Ready to move? Here's what you can do tomorrow.

Step 1: Clean up your intents. Export search terms from the last 90 days. Sort into three columns: informational, transactional, brand. Pure informational budget should not exceed 10% of total.

Step 2: Find overlapping keywords. Spot ones appearing in multiple campaigns. Merge them into one with your best RSA.

Step 3: Set conversion value. Give a price to each key action. No need for perfection: a rough estimate guides the algorithm.

Step 4: Group by intent. Go from 20 campaigns to 5-8. Keep a brand campaign separate.

Step 5: Launch Maximize Conversion Value on each consolidated campaign. Let it run 2 to 4 weeks, then check conversion value reports.

After that, watch your numbers. ROI climbs. Stress drops.

My clients often say: "I was scared to lose control." In reality, they gain clarity. Fewer dashboards, better results.

SEO and PPC follow the same path: architecture beats content. Structure well, money follows.

So tonight: download your search terms report. Count your campaigns. You might be surprised.

Stéphane Jambu

SEO & AI Engineer

I build growth systems / AI / Neuroscience | 650+ clients · 80 LinkedIn testimonials · 30 years of expertise · 15 years of systems running without me.

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