How I Set Up Google Performance Max Campaigns (Step-by-Step Guide for 2026)

Introduction

If you’re planning to run Google Performance Max campaigns in 2026, the quality of your setup will decide whether PMax becomes your best scaling channel or a budget drain.

I’ve set up and managed Performance Max campaigns across eCommerce and lead generation accounts, and one thing has been consistent: PMax rewards structure, data quality, and patience.

In this guide, I’ll walk you through exactly how I set up a Performance Max campaign, step by step, and explain why each decision matters so you’re not blindly following Google’s automation.

This guide applies to:

• eCommerce brands
• Lead generation businesses

(The setup flow is the same; only the inputs differ)

Where Performance Max Fits in Your Google Ads Strategy

Before we touch setup, let me be very clear:

I do not start new accounts with Performance Max.

Here’s why:

For eCommerce Brands

I always begin with:

• Search campaigns
• Standard Shopping campaigns

This helps me identify:

• Which products actually convert
• Which product titles and attributes work
• Whether landing pages are doing their job

Only after this data exists do I introduce Performance Max to scale beyond search demand.

For Lead Generation Businesses

I wait even longer.

Performance Max relies entirely on automated bidding, which means if your conversion data is weak or offline conversions aren’t tracked properly, you’ll attract low-quality or spam leads.

Rule I follow: If Search campaigns aren’t profitable yet, PMax won’t magically fix that.

Step 1: Create a New Campaign (The Right Way)

Inside Google Ads, you can start in two ways:

• Click Create → New Campaign
• Or use the blue “+” button

Choose Your Objective

• Sales → eCommerce
• Leads → Service / Lead Gen

This choice doesn’t radically change performance it just guides the setup flow. I don’t overthink it.

Step 2: Select the Correct Conversion Goals

This step is critical.

For Performance Max:

• You can only use Smart Bidding
• Google will optimize only for the conversion goals you select

What I do:

• Remove secondary or low-quality conversions
• Keep only primary actions (purchases or qualified leads)

Removing a goal here does not delete it from your account. It only removes it from this campaign.

For lead gen, I strongly recommend:

• Multi-step forms
• Phone calls longer than 2–3 minutes
• Offline conversions (CRM-integrated)

Step 3: Choose Performance Max (And Merchant Center for eCommerce)

After clicking Continue, select Performance Max.

If You’re an eCommerce Brand

• Select the correct Google Merchant Center
• Make sure the feed is clean and accurate

If Merchant Center isn’t ready, stop here and fix that first.

Step 4: Name Your Campaign Properly

Naming conventions matter more than people think.

I use this format:

Sales – Australia (PMax)

This instantly tells me:

• Objective
• Geography
• Campaign type

When accounts scale, this saves hours.

Step 5: Choose the Right Bidding Strategy

Performance Max gives you only two options:

1. Maximize Conversions

Best for:

• Lead generation
• When all conversions have similar value

2. Maximize Conversion Value

Best for:

• eCommerce
• Businesses with variable order values

Important: Don’t Set tCPA or tROAS Initially

I leave targets unset for the first 30–60 days.

Why?

• PMax performance often exceeds Search or Shopping ROAS
• Early targets can throttle learning
• You don’t yet know PMax’s true efficiency ceiling

I add targets only after stable data exists.

Step 6: New Customer Bidding (Use Carefully)

Google allows you to:

• Bid higher for new customers
• Or bid only for new customers

I like this strategy but I use it cautiously.

Due to past PMax delivery issues, I now rely more on brand exclusions and negative keywords instead of forcing “new customers only.” This avoids overlap with Search and Shopping.

Step 7: Location, Brand & Demographic Settings

Location Targeting

• Set your exact target country/region
• Performance Max does not allow location edits easily later

Brand Exclusions (Mandatory)

If you skip this, PMax will spend heavily on brand searches and you’ll pay for traffic you’d get anyway.

Always exclude:

• Your brand name
• Brand variations
• Domain name

Demographics (Optional)

If your data shows certain age groups never convert, you can exclude them—but do this slowly and only with proof.

Step 8: Skip Google’s Auto Asset Generation

Google will offer to auto-generate assets.

I skip this.

Why?

PMax is powerful because of your inputs, not because of default automation.

I prefer full control over:

• Headlines
• Descriptions
• Images
• Videos

Step 9: Understand Asset Groups (This Is Crucial)

Think of Asset Groups as Ad Groups.

I structure asset groups to match website structure, not guesses.

Example:

If a brand sells toothpaste and mouthwash, I create:

• Asset Group 1 → Toothpaste
• Asset Group 2 → Mouthwash

This improves:

• Relevance
• Learning speed
• Reporting clarity

Step 10: Listing Groups (eCommerce Only)

Inside each asset group:

• Create a listing group
• Restrict products intentionally

Options include:

• Item ID
• Brand
• Product type
• Custom labels

This prevents product overlap and keeps poor-performing SKUs from dragging performance down.

Step 11: Add URLs, Headlines & Descriptions

URLs

• Main URL = primary landing page
• Listing group ensures product focus

Headlines & Descriptions

I reuse:

• Best-performing Search headlines
• Proven messaging

Minimum I recommend:

• 10–15 headlines
• 4 long headlines
• 4–5 descriptions

Performance Max is secondary, so borrow what already works.

Step 12: Images & Videos (Don’t Overthink This)

From high-performing PMax campaigns I’ve seen, 90%+ of spend goes to Search and Shopping. Display and YouTube are supportive, not primary.

So:

• Upload required image formats
• Upload at least one video

But test creatives more aggressively in YouTube or Demand Gen, not PMax.

Step 13: Add Extensions (Highly Recommended)

Always add:

• Sitelinks
• Callouts
• Promotions
• Price extensions (if applicable)

These increase ad real estate, improve CTR, and improve conversion intent.

Step 14: Audience Signals (Guidance, Not Targeting)

This is where many people get confused.

Audience signals do NOT restrict targeting. They are recommendations.

What I add:

• All website visitors
• Past purchasers / converters
• High-intent page visitors
• Customer match lists

Search Themes

I add 3–5 proven broad-match keywords based on Search campaign data.

Google will go beyond these—but they accelerate learning.

Step 15: Budget Setting (Non-Negotiable Rule)

For Performance Max to work, I aim for:

• 20+ clicks per day
• Ideally 1+ conversion per day

If that requires $100/day, that’s the minimum.

Underfunded PMax campaigns fail silently.

Step 16: Publish & Expand with More Asset Groups

Once published:

• Let it run
• Monitor learning
• Avoid changes for at least 2 weeks

To scale:

• Add additional asset groups
• Separate products or services clearly
• Keep listing groups clean (eCommerce)

Final Thoughts: How I Think About Performance Max

Performance Max is not:

• A shortcut
• A replacement for Search
• A “set and forget” hack

It is:

• A scaling layer
• Fueled by data quality
• Rewarding structure and patience

If you try to control everything, PMax will frustrate you. If you guide it properly, it can outperform almost every other campaign type.