This article is about Google Analytics 4 properties. If you're using a Universal Analytics property, refer to the Universal Analytics section of this help center.

Add a Google Analytics 4 property (to a site that already has Analytics)

Set up a Google Analytics 4 (GA4) property alongside your existing Universal Analytics property

This article is for website owners who are using Universal Analytics and want to try out a GA4 property.

Learn more about GA4 properties and the next generation of Analytics

Use the GA4 Setup Assistant (instructions below) to create a new GA4 property that collects data in parallel with your existing Universal Analytics property. There are no changes to your Universal Analytics property and it continues to collect data as always. You can always access both properties via the property selector or Admin screen.

If you use a website builder or your site is hosted on a Content Management System (CMS) (for example, Hubspot, Magento, Squarespace, etc.) that doesn't already use gtag.js, follow these instructions for your particular CMS. and do not simply paste your "G-" ID into the field that your CMS provides.

The GA4 Setup Assistant wizard does not backfill your new GA4 property with historical data. Your GA4 property only collects data going forward. To see historical data, use the reports in your Universal Analytics property.

GA4 Setup Assistant wizard

Follow the instructions below to create your GA4 property. The instructions are the same regardless of whether your website pages have a Google Analytics tag (gtag.js or analytics.js) or a Google Tag Manager container. To use the GA4 Setup Assistant, you need Editor role for the account.

  1. In Google Analytics, click Settings Admin (lower left).
  2. In the Account column, make sure that your desired account is selected. (If you only have one Google Analytics account, it will already be selected.)
  3. In the Property column, select the Universal Analytics property that currently collects data for your website.
  4. In the Property column, click GA4 Setup Assistant. It is the first option in the Property column.
  5. Click Get started under I want to create a new Google Analytics 4 property.
  6. If your site uses the gtag.js, tag, you have the option to Enable data collection using your existing tags.

    If you use a website builder/CMS that already supports the gtag.js tag (e.g., WordPress, Shopify, Wix, etc.), you may have the option to Enable data collection using your existing tags.

    If your website builder/CMS does not yet support the gtag.js tag, if you use Google Tag Manager, or your website is tagged with analytics.js, the wizard can't reuse your existing tagging and you'll need to add the tag yourself (instructions).

    Note for advanced users: Enable data collection using your existing tags implements standard data collection for your GA4 property. If you've implemented any custom tags for your UA property, review these considerations for additional steps.
  7. Click Create Property.

Once you click Create Property, the setup wizard:

Once this process is complete, you will see "You have successfully connected your properties" at the top of your Google Analytics 4 Property Setup Assistant page.

Make a note of your GA4 property's name so you can find it later. If your Universal Analytics property name is "Example property (UA-nnnnnnn)", your GA4 property name will be "Example property (xxxxxxx)", without a "UA-" prefix, and where xxxxxxx is a new property number. Click See your GA4 property to open Setup Assistant in your new GA4 property.

 

If the setup wizard did use your existing tagging

If the GA4 Setup Assistant wizard provided the option to Enable data collection using your existing tags (and you left this option selected), your new GA4 property should now be collecting data.

It can take up to 30 minutes for data to begin appearing in your new GA4 property.

To verify that data is being collected, browse your website, then select Realtime from the report navigation. You should see activity in the Realtime report.

If you have an existing Firebase project, you can link this GA4 property to it. However, you have to do this from Firebase. Learn how.

If the setup wizard did not use your existing tagging

If you tagged your site with analytics.js (instead of gtag.js) or if you use a website builder/CMS that tags your pages with analytics.js, then the GA4 Setup Wizard was not able to reuse your existing tagging.

If you're not using a website builder/CMS, you or your web developer can use whatever page editor you like to add the GA4 gtag.js tag directly to your pages. Leave the analytics.js tag in place so that Analytics still sends data to your Universal Analytics property.

If you're using a website builder/CMS that tags your pages with analytics.js, you can use the custom-HTML feature to add the GA4 gtag.js tag to your pages. Leave the analytics.js tag in place so that Analytics still sends data to your Universal Analytics property.

Find your GA4 on-page tag

Your new GA4 on-page tag is located on the details page for the web data stream for your GA4 property. If you don't see a Data Streams link in the Property column, you are looking at the Admin page for a Universal Analytics property instead of your new GA4 property.

  1. Click Settings Admin (lower left).
  2. In the Property column, check that you have your new GA4 property selected, then click Data Streams, then Web. Click the data stream.
  3. Under Tagging Instructions, click Add new on-page tag > Global Site Tag (gtag.js). Your Analytics page tag is the entire section of code that appears, beginning with:
    <!-- Global Site Tag (gtag.js) - Google Analytics -->
    and ending with
    </script>

If you or your web developer are manually tagging your web pages

Copy and paste your entire Analytics page tag immediately after the <head> tag on each page of your website.

Don't remove the old analytics.js tag; it will continue to collect data for your Universal Analytics property. The gtag.js tag that you're adding will collect data for your new GA4 property.

Use the Realtime report to verify that you're receiving data.

If you are using a website builder/CMS

If your website builder/CMS is already using gtag.js, the setup wizard should offer the option to reuse your existing tags. If you don't have that option, then add your GA4 on-page tag as custom HTML.

The following table lists website builders / CMSes that use analytics.js and require that you add your GA4 on-page tag as custom HTML in order to have both tags on your site.

Copy and paste your entire Google Analytics page tag to your website using your CMS's custom HTML feature.

Use the Realtime report to verify that you're receiving data.

Website builder / CMS Options to add custom HTML
Blogger Instructions
Cart.com Contact Cart.com support for instructions
Hubspot Instructions
Magento Instructions
One.com Contact One.com support for instructions
Salesforce (Demandware) Contact Salesforce support for instructions
Squarespace

Instructions

Available only to users with "Business and Commerce" plan

VTEX Contact VTEX support for instructions
Weebly Instructions

If you add your tag using Google Tag Manager

For basic data collection, follow the Google Tag Manager help center instructions to add the Google Analytics: GA4 Configuration tag.

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