A conversion is any action a user takes that matters to your business goals.

This can include:

• Form submissions
• Purchases
• Phone calls
• Chat interactions
• Other tracked user actions

In modern analytics, these are often called key events, especially in Google Analytics 4.

Inside GA4, conversions (key events) help you:

• Measure what channels drive results
• Understand user behavior
• Optimize marketing campaigns based on real data

GA4 also allows different attribution models, such as:

• First-touch attribution (best for acquisition analysis)
• Data-driven attribution (AI-assisted performance modeling)

These models help you understand where customers come from and what drives conversions.

Not all actions are tracked automatically.

To properly track conversions, you use:

• Google Tag Manager for event setup
• Triggers for user interactions
• Tags for sending data to analytics platforms

This allows you to track:

• Form submissions
• Button clicks
• Purchases
• Custom events

Once GA4 is set up, you can:

• Link GA4 to Google Ads
• Import conversion events into Google Ads
• Use conversion data for campaign optimization

Best practice:

• Mark GA4 conversions as secondary
• Set Google Ads conversions as primary for bidding optimization

This improves bidding strategies and performance accuracy.

To properly measure marketing performance, track:

E-commerce:

• Purchases with revenue value
• Helps enable ROAS-based bidding strategies

Lead generation:

• Form submissions
• Chat leads
• Email signups

Phone calls:

• Calls from ads
• Calls from website

These are critical for service-based and local businesses.

Enhanced conversions improve tracking by using first-party user data such as:

• Email
• Phone number
• Name
• Address

This data is sent securely to Google Ads to improve attribution accuracy.

Benefits:

• Better tracking in privacy-limited environments
• Reduced dependency on cookies
• Improved conversion modeling
• More accurate campaign optimization