Google Ads Setup Guide: Search, Shopping & Performance Max
Complete guide to setting up Google Ads for e-commerce. Learn Search Ads, Shopping campaigns, Performance Max, and optimization strategies.

Google Ads is the most powerful platform for capturing high-intent buyers. This guide covers everything from account setup to advanced campaign strategies.
Google Ads vs Facebook Ads
Google Ads:
- High intent (people searching for solutions)
- Text + product listings
- More expensive per click
- Faster conversions
Facebook Ads:
- Interruption marketing
- Visual focus (images/video)
- Cheaper traffic
- Longer buying cycle
**Best strategy:** Use both platforms together.
Part 1: Account Setup
Step 1: Create Google Ads Account
1. Go to ads.google.com
2. Click "Start Now"
3. Choose business account
4. Enter business information
5. Set billing details
Account structure best practice:
- 1 account per business
- Multiple campaigns per account
- Organized ad groups within campaigns
Step 2: Link Google Analytics 4
Why link GA4:
✅Better conversion tracking
✅Audience insights
✅Cross-platform attribution
✅Free detailed analytics
How to link:
1. Google Ads → Tools → Linked accounts
2. Find Google Analytics → Link
3. Select GA4 property
4. Enable data sharing
Step 3: Set Up Conversion Tracking
Essential conversions to track:
✅**Purchase** - Completed sale (primary)
✅**Add to cart** - Shopping intent
✅**Begin checkout** - Checkout started
✅**Form submit** - Lead generated
✅**Phone call** - Call conversions
✅**Page view** - Key landing pages
Setup methods:
Option 1: Google Tag Manager (Recommended)
1. Install GTM on website
2. Add Google Ads conversion tag
3. Set up triggers (purchase, form submit, etc.)
4. Test in preview mode
5. Publish container
Option 2: Direct Installation
1. Google Ads → Tools → Conversions
2. Click + Conversion
3. Choose type (Website, Phone, App)
4. Copy tag code
5. Paste in website thank you page
Option 3: Shopify Integration
1. Shopify → Sales Channels → Google
2. Connect Google account
3. Auto-installs conversion tracking
4. Select conversions to track
Conversion values:
- E-commerce: Use transaction value
- Leads: Assign value based on LTV
- Engagement: Lower values for micro-conversions
Step 4: Connect Google Merchant Center (For Shopping Ads)
**Google Merchant Center** stores your product feed for Shopping campaigns.
Setup steps:
1. Go to merchants.google.com
2. Create account
3. Verify website ownership
4. Link to Google Ads account
Website verification methods:
- HTML tag (add to header)
- Google Analytics (if linked)
- Google Tag Manager
- Upload HTML file
Step 5: Create Product Feed
Feed requirements:
✅**id** - Unique product ID
✅**title** - Product name (150 chars max)
✅**description** - Product details (5000 chars)
✅**link** - Product page URL
✅**image_link** - High-quality image URL
✅**price** - Current price
✅**availability** - in stock / out of stock
✅**brand** - Product brand
✅**gtin** - Barcode (if applicable)
✅**condition** - new / used / refurbished
Feed creation methods:
Shopify:
1. Install Google Channel app
2. Auto-creates feed
3. Syncs inventory automatically
WooCommerce:
1. Install WooCommerce Google Feed plugin
2. Configure product mapping
3. Generate feed
Manual:
1. Download Google Sheets template
2. Add products manually
3. Schedule feed in Merchant Center
Feed optimization tips:
✅Use keyword-rich titles
✅High-quality images (800x800px minimum)
✅Detailed descriptions
✅Correct categorization
✅Competitive pricing
Part 2: Campaign Types Explained
Search Ads
What they are:
Text ads shown on Google search results when people search for your keywords.
Best for:
✅High-intent buyers
✅Service businesses
✅B2B companies
✅Local businesses
✅Niche products
Pros:
- Capture active searchers
- High conversion rates
- Control over keywords
- Measurable ROI
Cons:
- Can be expensive
- Requires keyword research
- Competitive auctions
Shopping Ads
What they are:
Product listings with image, price, and store name shown in Google Shopping tab and search results.
Best for:
✅E-commerce stores
✅Physical products
✅Price-competitive products
✅Visual products
Pros:
- High-quality traffic
- Visual product display
- Show price upfront
- Better click-through rates
Cons:
- Requires product feed
- Less control than Search
- Competitive pricing needed
Display Ads
What they are:
Banner and image ads shown across 2+ million websites and apps in Google Display Network.
Best for:
✅Brand awareness
✅Retargeting
✅Visual products
✅Reaching new audiences
Pros:
- Massive reach
- Visual impact
- Lower costs
- Great for remarketing
Cons:
- Lower intent traffic
- Banner blindness
- Lower conversion rates
Performance Max
What it is:
AI-driven campaign that runs across all Google properties (Search, Shopping, Display, YouTube, Gmail, Discover).
Best for:
✅E-commerce with good product data
✅Businesses with conversion history
✅Accounts with 30+ conversions/month
✅Automated optimization
Pros:
- Access all Google inventory
- AI optimization
- Less management needed
- Strong performance potential
Cons:
- Less control
- Black box optimization
- Needs conversion data
- Can cannibalize other campaigns
YouTube Ads
What they are:
Video ads shown before, during, or alongside YouTube videos.
Best for:
✅Brand awareness
✅Product demonstrations
✅Visual storytelling
✅Younger demographics
Pros:
- Massive reach (2B users)
- Video engagement
- Detailed targeting
- Cost-effective views
Cons:
- Requires video creative
- Skip rate challenges
- Longer buying cycle
Part 3: Search Ads Deep Dive
Keyword Research
Tools to use:
1. **Google Keyword Planner** (free in Google Ads)
2. **Semrush / Ahrefs** (paid, more data)
3. **Answer The Public** (question-based keywords)
4. **Google Search Console** (your current rankings)
Keyword types:
1. Branded keywords:
- Your business name
- Your product names
- Usually cheapest
- Highest conversion rate
2. Commercial intent:
- "buy [product]"
- "[product] for sale"
- "best [product]"
- High conversion potential
3. Informational:
- "how to [do something]"
- "what is [topic]"
- Lower intent
- Good for content marketing
4. Local keywords:
- "[service] near me"
- "[service] in [city]"
- High intent for local businesses
Keyword research process:
1. Start with seed keywords (your main products/services)
2. Use Keyword Planner to find related terms
3. Check competition and bid estimates
4. Group keywords by theme
5. Create match type strategy
Match Types
Broad Match
- Shows for searches related to your keyword
- Maximum reach
- Less control
Example: Keyword "running shoes"
May show for: buy sneakers, athletic footwear, jogging shoes
Phrase Match
- Shows when search includes your phrase or close variations
- More control than broad
- Good balance of reach and relevance
Example: Keyword "running shoes"
May show for: best running shoes, buy running shoes online
Won't show for: shoe running stores
Exact Match
- Shows only for exact keyword or very close variations
- Most control
- Lowest reach
- Most expensive
Example: Keyword [running shoes]
May show for: running shoes, running shoe
Won't show for: best running shoes
Match type strategy:
1. Start with Phrase match
2. Add Exact for best performers
3. Use Broad carefully (can waste budget)
Negative Keywords
What they are:
Keywords you DON'T want to show for.
Examples for "running shoes" store:
❌ free
❌ cheap
❌ DIY
❌ repair
❌ used
❌ jobs
❌ how to make
How to find negatives:
1. Search terms report (weekly review)
2. Think about irrelevant searches
3. Competitor names (unless you want to)
4. Generic terms
Add negatives at:
- Campaign level (apply to all ad groups)
- Ad group level (specific exclusions)
Ad Copy Structure
**Headline 1:** Primary keyword + benefit
Example: "Waterproof Running Shoes - Free Shipping"
**Headline 2:** Secondary benefit or offer
Example: "30-Day Returns | Top Rated 2025"
**Headline 3:** Brand or trust signal
Example: "Trusted by 50,000+ Runners"
**Description 1:** Expand on benefits
Example: "Shop premium running shoes designed for comfort and performance. Advanced cushioning technology."
**Description 2:** Call to action
Example: "Order today and get free shipping. 30-day money-back guarantee."
Ad copy best practices:
✅Include keyword in headline
✅Clear call-to-action
✅Use numbers and specifics
✅Highlight unique selling points
✅Match ad to landing page
✅Use ad extensions
Ad Extensions
Sitelink extensions:
Additional links below your ad
Example: "Shop Men's" | "Shop Women's" | "Sale Items"
Callout extensions:
Additional text highlighting benefits
Example: "Free Shipping" | "24/7 Support" | "Price Match"
Structured snippets:
Predefined categories
Example: Brands: Nike, Adidas, New Balance
Call extensions:
Add phone number to ad
Essential for service businesses
Location extensions:
Show business address
Critical for local businesses
Price extensions:
Show pricing for different products/services
Bidding Strategies
Manual CPC:
You set bids for each keyword
Best for: New accounts, testing, full control
Maximize Clicks:
Get most clicks within budget
Best for: Traffic goals, testing
Target CPA:
Set target cost per conversion
Best for: Established campaigns with conversion data
Target ROAS:
Set target return on ad spend
Best for: E-commerce with varying product values
Maximize Conversions:
Get most conversions within budget
Best for: Accounts with sufficient data
Bidding recommendations:
- Start: Manual CPC or Maximize Clicks
- Scale: Target CPA or Target ROAS (after 30+ conversions)
Part 4: Shopping Ads Setup
Campaign Structure
Standard Shopping:
More manual control over bids and product groups
Smart Shopping (Being Phased Out):
Automated bidding and placement
→ Migrate to Performance Max
Recommended structure:
Campaign: Shopping - All Products
> Ad Group: All Products
> Product Groups:
- Brand A (higher bid)
- Brand B (medium bid)
- Everything else (lower bid)
Product Group Segmentation
Segment by:
1. **Product type** - Category-based grouping
2. **Brand** - Different bids per brand
3. **Condition** - New vs. refurbished
4. **Item ID** - Individual product control
5. **Custom labels** - Your own groupings
Example for clothing store:
All Products
- Shirts
- T-Shirts ($1.50 bid)
- Dress Shirts ($2.00 bid)
- Pants
- Jeans ($1.75 bid)
- Chinos ($1.50 bid)
- Shoes ($2.50 bid)
Bidding Strategy
Start with:
- Manual CPC
- Set bids by product group profitability
Bid adjustments based on:
✅Profit margin (higher margin = higher bid)
✅Competition (popular items need higher bids)
✅Conversion rate (winners get more budget)
✅Inventory (lower bids when stock is low)
Scale with:
- Target ROAS (after 15+ conversions)
- Set realistic targets (start at 200-300%)
Shopping Ads Optimization
Feed optimization:
✅Update prices daily
✅Remove out-of-stock items
✅Optimize titles (keyword-rich)
✅High-quality images
✅Competitive pricing
Campaign optimization:
✅Add negative keywords weekly
✅Adjust bids based on performance
✅Pause low performers
✅Increase budget for winners
✅Test product segmentation
Common issues:
❌ Feed errors → Check Merchant Center
❌ Low impressions → Increase bids or improve titles
❌ High clicks, low conversions → Check landing page/price
Part 5: Performance Max Setup
When to Use Performance Max
Good fit:
✅30+ conversions per month
✅Good product feed data
✅Want automation
✅Limited time for management
Not ideal for:
❌ New accounts (no data)
❌ Need specific control
❌ Testing phase
❌ Limited budget (<$50/day)
Asset Groups
What they are:
Collections of creative assets (images, videos, headlines, descriptions) for different audience themes.
Example asset groups for clothing store:
1. **Women's Activewear** - Yoga pants, sports bras assets
2. **Men's Casual** - T-shirts, jeans assets
3. **Athletic Shoes** - Running, training shoe assets
Assets needed per group:
- 3-5 headlines (30 chars)
- 5 long headlines (90 chars)
- 4 descriptions (60 chars)
- 1-5 descriptions (90 chars)
- 1-20 images (landscape, square, portrait)
- 1-5 videos (optional but recommended)
- 1-5 logos
Audience Signals
What they are:
Hints to help Google find your ideal customers faster.
Types of signals:
1. **Custom segments** - Keywords and URLs
2. **Demographics** - Age, gender, income
3. **Your data** - Website visitors, customer lists
4. **Interests** - Affinity and in-market audiences
How to set:
1. Create asset group
2. Add audience signals
3. Use 2-5 different signal types
4. Let Google expand beyond signals
**Important:** Signals are guides, not restrictions. Google will go beyond your signals.
Performance Max vs Search/Shopping
Run Performance Max when:
✅You want maximum reach
✅You have good conversion data
✅You trust automation
Keep Search/Shopping when:
✅You want keyword control
✅You have specific testing needs
✅PMax alone isn't hitting goals
Best practice:
Run both, but exclude Search/Shopping inventory from PMax using campaign settings.
Part 6: Budget & Bidding Strategy
Starting Budgets by Campaign Type
Search Ads:
- Test: $20-50/day
- Requires: 2-3x your target CPA minimum
- Example: $30 target CPA = $60-90/day budget
Shopping Ads:
- Test: $30-75/day
- Requires: Enough budget for 1-2 sales/day minimum
- Example: 2% conversion rate, $50 AOV = need 50-100 clicks/day
Performance Max:
- Test: $50-100/day minimum
- Requires: 3x your target CPA
- Example: $25 target CPA = $75+/day budget
Display Ads:
- Test: $10-30/day
- Very low CPC, high volume needed
Budget Allocation
E-commerce recommended split:
- Shopping: 50%
- Search: 30%
- Performance Max: 15%
- Display/Retargeting: 5%
Service business recommended split:
- Search: 70%
- Display/Retargeting: 20%
- Performance Max: 10%
Bidding Strategy by Stage
Testing phase (First 30 days):
- Manual CPC or Maximize Clicks
- Gather data
- Goal: 30+ conversions
Growth phase (30-90 days):
- Target CPA or Target ROAS
- Set realistic targets
- Scale budget gradually
Mature phase (90+ days):
- Maximize Conversion Value
- or Maintain Target ROAS
- Focus on profit optimization
Setting Target CPA/ROAS
Target CPA calculation:
1. Know your profit per sale
2. Determine acceptable CAC
3. Set target at 70-80% of acceptable CAC
Example:
- Product price: $100
- Product cost: $40
- Profit: $60
- Acceptable CAC: $40 (to maintain 20% profit)
- Target CPA: $32 (80% of $40)
Target ROAS calculation:
ROAS = Revenue ÷ Ad Spend
Example:
- Want 3x ROAS
- Set target ROAS: 300%
Starting targets:
- E-commerce: 200-300% ROAS
- Lead gen: $50-150 CPA (varies widely)
- Local services: $30-100 CPA
Common Mistakes to Avoid
❌ Too low budget
Need at least 2-3x target CPA daily.
❌ Impatient optimization
Wait 7-14 days before major changes.
❌ Ignoring search terms
Review weekly, add negatives.
❌ Bad landing pages
Fast-loading, mobile-optimized pages required.
❌ No conversion tracking
Can't optimize without data.
❌ Only using one campaign type
Test multiple approaches.
❌ Set and forget
Weekly optimization is essential.
Advanced Tips
Conversion API Setup
Like Facebook's Conversion API, Google has **Enhanced Conversions**.
Benefits:
✅Better tracking (cookies decline)
✅More accurate attribution
✅Improved bidding
Setup:
1. Google Tag Manager
2. Add enhanced conversions tag
3. Hash user data (email, phone)
4. Send with conversion events
Remarketing Setup
Audiences to create:
1. **All visitors** (180 days)
2. **Product viewers** (30 days)
3. **Cart abandoners** (7 days)
4. **Past purchasers** (365 days)
Campaign strategy:
- Search: Bid higher for past visitors
- Display: Retarget with product ads
- Shopping: Dynamic remarketing
Competitor Targeting
Search campaigns:
- Bid on competitor brand names
- Use "Alternative to [Competitor]" in ad copy
- Ensure your landing page shows comparison
**Legal note:** You can bid on trademarks, but can't use them in ad copy (in most cases).
Local Campaigns
For local businesses:
✅Enable location extensions
✅Use radius targeting
✅Bid higher in service area
✅Add call extensions
✅Track store visits
Local keywords:
- "[service] near me"
- "[service] in [city]"
- "[city] [service]"
Next Steps
1. **Set up account** and conversion tracking
2. **Choose campaign type** based on your business
3. **Start with small budget** ($50-100/day)
4. **Run for 14 days** minimum without changes
5. **Analyze performance** and optimize
6. **Scale winners**, pause losers
7. **Test new campaigns** continuously
Google Ads requires patience and data. Start small, learn what works, then scale aggressively.
**Need help with setup?** Book a free consultation to review your Google Ads strategy.

Written by Vince Servidad
E-commerce Ad Management Specialist with $26M+ in managed ad spend. I work exclusively with online stores to scale profitably through Facebook and Google Ads.
Want More Marketing Insights?
Get weekly tips, strategies, and case studies delivered to your inbox.