Summary
It allows you to see the full customer journey, from ad interactions to onsite key events. Google Ads shows what happens before the click and GA4 shows what happens after it, so the link joins both datasets in one place. It does not manage campaigns, reallocate budget or act as the only source of ad click data.
Nitin Batra is a Google Analytics 4 certified professional who configures Google Ads to GA4 product links, audience imports and conversion imports for paid search accounts on a regular basis.
Last updated: August 16, 2026
Linking a Google Ads account with a Google Analytics 4 property lets you see the full customer journey, from ad impressions and clicks through to onsite behaviour and key events recorded in GA4.
- It replaces the need to use the Google Ads interface for campaign management.
- It allows you to see the full customer journey, from ad interactions to onsite key events.
- It automatically reallocates advertising budget to campaigns with higher conversion rates.
- It offers the only method available for viewing the total number of ad clicks.
The correct answer is: It allows you to see the full customer journey, from ad interactions to onsite key events.
Key Takeaways
- – Linking a Google Ads account with a Google Analytics property allows you to see the full customer journey, from ad interactions to onsite key events.
- – The link is created in GA4 under Admin, Product Links, Google Ads Links, and it needs Editor access on the GA4 property plus admin access on the Ads account.
- – Google Ads measures pre-click activity like impressions and clicks, while GA4 measures post-click behaviour, so the link is what connects spend to onsite outcomes.
- – Linking does not manage campaigns or shift budgets for you. Bid changes, budget allocation and campaign edits still happen inside the Google Ads interface.
Where do you link a Google Ads account to a GA4 property?
Go to Admin at the bottom left of GA4, open Product Links, then select Google Ads Links and click Link. You choose the Google Ads account, enable personalised advertising and auto-tagging, then confirm. You need Editor role on the GA4 property and administrative access on the Google Ads account for the option to appear.
What reports become available in GA4 after the Google Ads link is active?
You get the Google Ads campaigns report under Acquisition, and Google Ads specific dimensions such as Google Ads campaign, Google Ads ad group name and Google Ads keyword text become usable in Explorations and comparisons. Session Google Ads campaign also starts populating correctly alongside metrics like clicks and cost. Data usually starts flowing within 24 to 48 hours of linking.
Does linking Google Ads and GA4 mean the conversion numbers in both tools will match?
No, and this trips up a lot of people. Google Ads credits conversions to the date of the ad click and uses its own attribution and conversion window, while GA4 credits key events to the date they happened using its own attribution model. Both numbers can be correct at the same time, so compare trends and relative performance rather than expecting identical totals.
What happens if auto-tagging is turned off in Google Ads?
Without auto-tagging, the GCLID is not appended to landing page URLs, so GA4 cannot join the click data to the session and your Google Ads traffic often lands in google / cpc or even google / organic with missing campaign detail. Keep auto-tagging enabled after linking, and if your site strips query parameters at redirect, fix that first. Manual UTM tags are only a fallback and they will not bring in cost and click metrics.