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The Google Ads integration sends conversions to Google Ads using the Conversions API with enhanced conversions, providing server-side tracking and improved match rates for accurate attribution.

What Gets Synced

Ad Performance Data (From Google):
  • Campaign, ad group stats
  • Spend, impressions, clicks
  • Cost per click, conversions
  • ROAS metrics
Conversion Data (To Google):
  • Purchase events with revenue
  • Lead gen conversions
  • Signup/registration events
  • Add to cart events
  • Custom conversions you configure

How It Works

Conversion Flow

1. User Clicks Google Ad
User clicks Google ad
Google appends gclid to URL
URL: https://yoursite.com/?gclid=Cj0KCQ...
2. DATALYR Captures Click ID
DATALYR tracking script captures:
- gclid: Cj0KCQ...
- gbraid: (for iOS 14.5+ app installs)
- _gcl_aw cookie (Google Ads)
Stores in visitor profile: anon_abc123
3. User Converts
User completes purchase: $149.99
DATALYR tracks conversion event
4. Conversion Sent to Google Ads API
DATALYR sends offline conversion:
- Conversion Action: Purchase
- Value: $149.99
- gclid: Cj0KCQ... (from Day 1)
- Enhanced data: email, phone (hashed)
- Order ID for deduplication
5. Google Attributes Conversion
Google receives conversion
Matches gclid to original ad click
Attributes $149.99 to Google Ads campaign
Updates Smart Bidding with conversion data
Result: Purchase correctly attributed to Google ad, optimizing Smart Bidding.

Setup

1. Connect Google Ads Account

  1. Navigate to Settings → Sources in DATALYR
  2. Click “Connect” next to Google Ads
  3. Log in to Google account
  4. Select Google Ads account
  5. Grant permissions:
    • View ad performance
    • Upload conversions
    • View and manage conversion actions
  6. Click “Allow”

2. Select Primary Ad Account

After connecting:
  1. DATALYR shows all accessible ad accounts
  2. Select your primary Google Ads customer ID
  3. DATALYR fetches existing conversion actions
  4. Click “Save”

3. Create Conversion Actions

In Google Ads:
  1. Go to Tools → Conversions
  2. Click ”+” to create conversion action
  3. Select “Import” → “Other data sources”
  4. Name: “Purchase” (or your event name)
  5. Category: Purchase
  6. Value: Use different values for each conversion
  7. Count: One (recommended)
  8. Conversion window: 30 days (default)
  9. Save conversion action
Repeat for each conversion type (Lead, Signup, etc.)

4. Map Events in DATALYR

  1. Go to Settings → Conversion Rules
  2. Map your events to Google conversion actions:
    • purchase → Purchase conversion action
    • lead → Lead conversion action
    • signup → Signup conversion action
  3. Configure conversion values:
    • Dynamic (use order total)
    • Fixed value per conversion

5. Verify Integration

Test Conversion:
  1. Click Google ad with gclid parameter
  2. Complete conversion on your site
  3. Wait 3-4 hours (Google processing time)
  4. Check Google Ads → Tools → Conversions
  5. Verify conversion appears with “Upload” source

Enhanced Conversions

What Are Enhanced Conversions

Enhanced conversions improve match rates by sending hashed customer data (email, phone, address) with conversions for better attribution. Standard Conversion:
{
  "gclid": "Cj0KCQ...",
  "conversion_value": 99.99,
  "conversion_currency": "USD"
}
Enhanced Conversion:
{
  "gclid": "Cj0KCQ...",
  "conversion_value": 99.99,
  "conversion_currency": "USD",
  "user_identifiers": [{
    "hashed_email": "sha256_hash",
    "hashed_phone_number": "sha256_hash",
    "address_info": {
      "hashed_first_name": "sha256_hash",
      "hashed_last_name": "sha256_hash",
      "city": "san francisco",
      "state": "ca",
      "postal_code": "94102",
      "country": "us"
    }
  }]
}

Benefits

  • Higher match rates: 15-30% improvement
  • Better Smart Bidding: More accurate conversion data
  • Cross-device attribution: Match users across devices
  • iOS 14+ recovery: Improve attribution despite tracking limits

Click IDs

gclid (Google Click ID)

Standard click ID for web clicks:
URL: https://example.com/?gclid=Cj0KCQjw...
Captured by DATALYR automatically

gbraid (Google SKAN Identifier)

For iOS 14.5+ app install attribution:
URL: https://example.com/?gbraid=1234567890...
Used when:
  • User clicks ad on iOS device
  • Privacy-preserving attribution needed

wbraid (Web-to-App Identifier)

For web-to-app conversions:
URL: https://example.com/?wbraid=abcd1234...
Used when:
  • User clicks web ad
  • Converts in mobile app
DATALYR automatically detects and uses the correct identifier.

Attribution

Cross-Device Attribution

DATALYR links conversions across devices using email matching: Example: Mobile (Day 1):
User clicks Google ad on mobile
gclid captured: Cj0KCQ...
Visitor ID: anon_mobile_123
Desktop (Day 5):
User purchases on desktop
Email: [email protected]
Order: $149.99

DATALYR links:
1. Desktop visitor → [email protected]
2. Mobile visitor → [email protected]
3. Finds gclid from mobile click
4. Sends conversion with original gclid
Result: Desktop purchase attributed to mobile Google ad.

Attribution Windows

Google Default Windows:
  • 30-day click attribution (configurable)
  • 1-day view attribution (optional)
DATALYR Settings:
  • 30-day default attribution window
  • Customizable per workspace
  • Matches Google’s conversion window setting

Conversion Tracking

Offline Conversions

DATALYR sends offline conversions to Google Ads: Upload Method:
Google Ads API v21
Endpoint: OfflineConversionUploadService
Method: uploadClickConversions
Data Sent:
{
  "conversions": [{
    "gclid": "Cj0KCQ...",
    "conversion_action": "customers/123/conversionActions/456",
    "conversion_date_time": "2025-09-29 10:30:45-07:00",
    "conversion_value": 149.99,
    "currency_code": "USD",
    "order_id": "ORDER_789", // Deduplication
    "user_identifiers": [{
      "hashed_email": "...",
      "hashed_phone_number": "...",
      "address_info": {...}
    }]
  }]
}

Deduplication

Order ID Method: DATALYR uses order IDs to prevent duplicate conversions:
// Same order won't be counted twice
Conversion 1: order_id = "ORDER_123"
Conversion 2: order_id = "ORDER_123" (duplicate, ignored by Google)
Best Practice:
  • Always include order_id for purchases
  • Use unique IDs for each conversion
  • Google deduplicates within 24 hours

Event Mapping

Standard Conversions

Your EventGoogle Conversion ActionValue
purchasePurchaseOrder total
leadSubmit lead formFixed or dynamic
signupSign upLTV or fixed
add_to_cartAdd to cartCart value
begin_checkoutBegin checkoutCart total

Custom Conversions

Create custom conversion actions for specific events:
// Track free trial starts
datalyr.track('trial_started', {
  plan: 'pro',
  value: 99 // Monthly plan value
});

// Maps to Google conversion action: "Trial Started"

Advanced Features

Cart Data

Send product details for Performance Max campaigns:
{
  "cart_data": {
    "items": [{
      "product_id": "SKU123",
      "quantity": 2,
      "unit_price": 49.99
    }]
  }
}
Benefits:
  • Better product-level insights
  • Improved Performance Max optimization
  • Product feed matching

User-Provided Data

Enhanced conversions with comprehensive data:
{
  "user_identifiers": [{
    "hashed_email": "sha256_hash",
    "hashed_phone_number": "sha256_hash",
    "address_info": {
      "hashed_first_name": "sha256_hash",
      "hashed_last_name": "sha256_hash",
      "city": "san francisco",
      "state": "ca",
      "postal_code": "94102",
      "country": "us"
    }
  }],
  "user_identifier_source": "FIRST_PARTY"
}
All data is SHA-256 hashed before sending.

Troubleshooting

Conversions Not Appearing

Check:
  1. Integration is connected and active
  2. Conversion action exists in Google Ads
  3. Event has gclid parameter
  4. Within attribution window (30 days)
  5. Wait 3-4 hours for Google processing
Common Issues:
  • Missing gclid: User didn’t click Google ad
  • Wrong customer ID: Verify ad account selected
  • Conversion action not set up: Create in Google Ads first

Low Conversion Volume

Increase conversions by:
  1. Send all conversion events (not just purchases)
  2. Include enhanced data (email, phone)
  3. Map more events to conversion actions
  4. Verify gclid is captured on all entry pages

Match Rate Issues

Improve match rates:
  1. Send email with every conversion
  2. Include phone number (E.164 format)
  3. Send full address data (city, state, zip)
  4. Use consistent data formatting
Target: 70%+ match rate for enhanced conversions

Smart Bidding

How Conversions Improve Bidding

Google Smart Bidding uses conversion data to optimize:
  • Target ROAS: Maximize revenue at target return
  • Target CPA: Get conversions at target cost
  • Maximize Conversions: Get most conversions in budget
  • Maximize Conversion Value: Maximize revenue
More conversion data = Better optimization

Best Practices

  1. Send all conversions: Including micro-conversions
  2. Accurate values: Use actual order values
  3. Timely uploads: DATALYR sends immediately
  4. 30+ conversions/month: Minimum for Smart Bidding

Data Privacy

Customer Data:
  • All emails, phones, names are SHA-256 hashed
  • No plaintext PII sent to Google
  • GDPR compliant
  • E.164 phone formatting for accuracy
Hashing Example:
// Before
Email: "[email protected]"
Phone: "+14155551234"

// After (sent to Google)
hashed_email: "b4c9a289323b21a01c3e940f150eb9b8c542587f1abfd8f0e1cc1ffc5e475514"
hashed_phone_number: "8c2b7e9e4e7e3f7a5d0c5f6e4e7e3f7a5d0c5f6e4e7e3f7a5d0c5f6e4e7e3f7a"

Next Steps

Need Help?

Questions about Google Ads integration? Check our troubleshooting guide or contact support.