Overview
To create a Google Ads conversion, identify an Analytics key event that measures the important interaction. You can then create a new conversion in Google Ads that's based on the Google Analytics key event through the Google Ads and Google Analytics interface. After you create the conversion, the conversion data is shared between Google Ads and Google Analytics so you're viewing the same data across platforms.
Google Ads conversions that are based on Google Analytics key events can help you see how well your advertisements from Google Ads are performing so you can improve your marketing strategy and optimize your bidding strategy through Google Ads Smart Bidding.
You can manage most of your Google Ads conversion settings through the Google Ads and Google Analytics interface. This helps maintain consistency and reduces the risk of data discrepancies. Conversion-related updates made through the Google Analytics interface will only appear in the "Change history" page of Google Ads.
Learn more about editing your conversion settings from the Google Ads and Google Analytics interface.
Before you begin
Before you get started, you must:
Set up a Google Analytics web data source
- Go to Summarywithin the Goals menu. 
- Select + Create conversion action.
- Select Conversions on a website and select Continue.
- Select Add URL.
- Select Scan.
- If a Google Analytics account is available, you’ll see it displayed.
- Choose the data you want to share by turning on the switch:
    - Import app and web metrics. Learn about using GA metrics in Google Ads.
- Import Google Analytics audiences. Learn more about remarketing audiences.
 
- Select Link.
- Select Done.
    - Note: When we detect that a Google Analytics property has app data streams, you’ll be prompted to use the Google Analytics property to measure activity in your apps.
 
- To use Google Analytics to measure your app activity, select Use property.
- Ensure both “Conversion on a website” and “Conversion on an app” are checked.
- Select Continue.
Frequently asked questions
How is credit attributed for conversions that are based on Google Analytics key events?
Why don't I see view-through key event data or cross-device conversions in Google Ads?
Why is my Google Ads conversion marked as a "secondary" conversion action?
Google Ads marks a conversion as "secondary" when your Google Ads account already has goals from an Analytics property. Conversion actions that are based on Google Analytics key events or are created through the Google Analytics interface are set to "secondary" conversion actions to prevent counting the same event twice for bidding.
What's next
To learn more about how Google Ads conversion measurement works with Analytics and why you may see some discrepancies in the conversion statistics between Google Ads conversion measurement and Analytics, visit the Google Ads help center.