How To Link Google Ads To GA4 And Import Conversions

If you are running Google Ads campaigns and you are not yet linking them to Google Analytics 4, then there is a very good chance you are making decisions based on incomplete data. The connection between Google Ads and Google Analytics 4 is one of the most important integrations you can make in your entire digital marketing setup, and yet it is something that a surprisingly large number of advertisers either skip entirely or set up incorrectly. When both platforms are properly linked and your conversions are flowing through correctly, you gain a much richer understanding of what your campaigns are actually achieving, beyond just clicks and impressions. This guide walks you through exactly how to link Google Ads to GA4 and import your conversions, so that your campaigns are optimised on data that actually means something.

Why Linking Google Ads To GA4 Matters

Google Ads will tell you how many people clicked your advert. GA4 will tell you what those people did after they arrived on your website. When you bring those two data sets together, you can see the complete journey from the moment someone sees your ad through to the point where they make a purchase, submit a form, or complete whatever action matters most to your business. Without this connection, you are essentially flying blind after the click, and that makes it very difficult to judge which campaigns, ad groups, or keywords are genuinely delivering results for you.

Beyond visibility, linking the two platforms also allows you to import GA4 conversion events directly into Google Ads, which means the bidding algorithms within Google Ads can optimise towards the actions that truly matter to your business rather than proxies or less meaningful signals. This is particularly important if you are running Smart Bidding strategies such as Target CPA or Target ROAS, because those strategies depend entirely on quality conversion data to function properly.

Linking Google Ads To GA4

The first step is to establish the link between the two platforms. To do this, you will need admin access to both your Google Ads account and your GA4 property. It is worth double-checking your permissions before you begin, as missing access on either side will prevent the link from completing successfully.

Start by logging into your GA4 property. From there, navigate to the Admin section, which you will find in the lower left corner of the interface. Under the Property column, look for the option labelled Product Links. Within that section, you will find Google Ads Links. Click on that, and then select the blue Link button in the top right corner of the screen.

GA4 will then prompt you to choose the Google Ads accounts you want to link. If your Google account has access to multiple Ads accounts, they will all appear here. Select the correct account or accounts, then proceed to configure the link settings. You will be asked whether you want to enable personalised advertising and whether you want to enable auto-tagging. In almost all cases, you should leave auto-tagging enabled, as this is what allows GA4 to accurately attribute sessions to your Google Ads campaigns using the GCLID parameter.

\p>Once you have reviewed your settings, confirm the link. The connection will typically be active within a few hours, though in some cases it can take up to 24 hours before data begins flowing between the platforms.

Enabling Auto-Tagging In Google Ads

Auto-tagging is the mechanism that appends a unique identifier to the URLs users land on after clicking your adverts. This identifier is what allows GA4 to match sessions to specific campaigns, ad groups, and keywords within Google Ads. If auto-tagging is switched off, the attribution data will be incomplete or entirely absent.

To check and enable auto-tagging, log into your Google Ads account. Go to Admin, then Account Settings. You will see an auto-tagging toggle near the top of the page. Make sure it is turned on. If your website uses a content management system or has redirect rules in place, it is worth verifying that the GCLID parameter is being passed through correctly and is not being stripped by your server configuration.

Importing GA4 Conversions Into Google Ads

Once the link is active, you can begin importing conversion events from GA4 into Google Ads. This is where the real value lies, because it means your Google Ads campaigns will optimise towards meaningful on-site actions that you have defined and verified within GA4.

Inside your Google Ads account, navigate to Goals, then Conversions, and then Summary. Click the blue plus button to add a new conversion action. You will be presented with several options for the conversion source. Select Import, and then choose Google Analytics 4 properties. GA4 will display a list of the conversion events that exist within your linked property. These are the events you have marked as conversions inside GA4.

Select the events you want to import into Google Ads. Be deliberate here. Focus on the high-value actions that represent real business outcomes, such as completed purchases, qualified lead form submissions, or phone calls. Importing low-value events such as page views or scroll depth as primary conversions will cause your bidding strategy to optimise for the wrong things, and your budget will follow accordingly.

Once you have selected your events, click Import and Continue. Your selected GA4 conversions will now appear in your Google Ads conversion actions list, and the bidding algorithms will begin factoring them into campaign optimisation.

Verifying That Everything Is Working Correctly

After completing the setup, it is important to verify that data is flowing correctly between the two platforms rather than assuming the job is done. Within Google Ads, check the conversion action you have imported and look at the status column. If it reads No recent conversions, that may simply mean no conversions have occurred yet, but if it reads Unverified after a reasonable period of traffic, there may be a configuration issue worth investigating.

In GA4, go to Reports and then Acquisition, and look for the Google Ads dimensions to confirm that campaign data is populating correctly. You should be able to see sessions attributed to your campaigns, and if you have conversion events firing, those should also appear in your reports. If the data is absent or mismatched, revisit your auto-tagging settings and check whether any URL parameters are being stripped during redirects on your website.

Keeping Your Conversion Data Clean

One of the most common issues that arises after this setup is duplicate conversion counting. If you have conversion tracking configured directly within Google Ads via a Google tag, and you then also import the same conversion from GA4, you may end up counting the same action twice. This inflates your reported conversion numbers and misleads your bidding strategy.

Review your existing conversion actions in Google Ads carefully. If you are migrating to GA4-imported conversions, consider pausing or removing the older Google Ads tag-based conversion actions to avoid duplication. Make sure that whichever conversion actions are set as primary are the ones you actually want the bidding algorithm to optimise towards.

Bringing It All Together

Linking Google Ads to GA4 and importing your conversions properly is not a complicated process, but it does require attention to detail at each step. The link itself takes only a few minutes to establish, but the value it unlocks is significant. You gain a unified view of campaign performance, your bidding strategies become far more intelligent, and your ability to make confident, data-backed decisions improves considerably. If you have been running Google Ads without this integration in place, setting it up should be a priority rather than an afterthought. Good campaign data is only as useful as the infrastructure you have built to capture and act on it, and this integration is a foundational part of that infrastructure.