google analytics 4 vs universal analytics

Google Analytics 4 vs Universal Analytics

In the fall of 2020, Google rolled out Google Analytics 4 (GA4), the latest iteration of the Google Analytics platform. GA4 replaces Universal Analytics (UA) as the default for digital analytics measurement in GA. And now – in 2022 – Google announced that GA4 will be the only option beginning on July 1, 2023. This guide helps to answers some of those questions about Google Analytics 4 vs Universal Analytics. If you’re looking to get started with GA4 on your own, installation instructions are at the end of this guide.

What is GA4?

Google Analytics 4 (GA4) is now officially the recommended property type of Google Analytics. It used to be called App+Web Property when it was first added in beta. Why App+Web? Well, the new property can track both App and Web visits in a single Google Analytics property instead of having those differing platform visits separated into different GA properties. In the fall of 2020, that App+Web Property was rebadged and re-released as Google Analytics 4 (GA4).

Following an announcement from Google on March 16, 2022, we know that GA4 will be our only option beginning in July 2023.

If you’re more of a video person, check out this side by side comparison of Google Analytics 4 vs. Universal Analytics. It includes what the two property types look like, how to navigate to basic reports, and how they work. Otherwise, read on below to get the full scoop!

What Happened Before GA4?

Google Analytics has evolved a great deal since it was first acquired by Google in 2005. In April of that year Google purchased a product called “Urchin Analytics” (this is where UTM parameters or Urchin Tracking Modules come from) and it became the classic version of Google Analytics.

In 2013, the Universal Analytics (UA) platform rolled out and became the standard for tracking. But following the aforementioned March 16, 2022 announcement from Google about GA4, we know that UA will be deprecated beginning in July of 2023.

What Are People Doing Now?

Well, many of us are scrambling to learn about GA4 because we know the clock is ticking towards a defined end date. That might be you, since this blog is designed to orient us to GA4 by comparing it to UA. If you understand the background and want to skip to implementation, you may want to check out these 6 essential tasks for GA4 setup.

ga4 setup 6 tasks

But if you’re closer to the starting line, let’s briefly review some of the basics about Google Analytics and the GA4 property.

Ok, So What is a Google Analytics “Property” Again?

According to Google, a “property is where your company’s online data goes to get processed by Google Analytics.” It’s where the *stuff* happens in Google Analytics.

A Google Analytics property sits within a Google Analytics account. The account is the level of the hierarchy where you log in and is used to help organize your data if you have multiple properties. Data processing takes place at the property level.

In the time before GA4, a company with both an App and a Website would have a single account and two distinct properties – one for the app and one for the website. With Google Analytics 4, a single property contains data for both app and web.

With Universal Analytics, each property may contain multiple views. Views allow for data filtering and configurations. This functionality does not currently exist with GA4.

Can You Have Have Different Views in GA4?

As of now (April 2022), this is not available in GA4.

Historically, the “Google Analytics best practice” was always to have a minimum of 3 different “Views” in a Google Analytics property. One view would be the “Master” view which should contain filtered data, goal tracking, and other customizations to the data. Google also recommended a “Test” view, where new filters and goals could be tested before being incorporated in the Master view. And finally, Google recommended an Unfiltered view, which would contain all raw data as a backup.

Views were a cornerstone of Google Analytics and it will be great to see if and when Google incorporates them in GA4.

How Does Google Analytics 4 Measure Users?

Data gets into Universal Analytics from “cookie-based” tracking. A website with UA sends a cookie into the user’s web browser, and that allows the platform to monitor and record web activity on the site in question during that user’s session on the site. The measurement approach is a session-based data model.

According to Google, Google Analytics 4 allows “businesses to measure across platforms and devices using multiple forms of identity.” This includes first party data as well as “Google signals” from users who have opted into ads personalization. And Google Analytics 4 will still use cookies where they are available for tracking. Instead of tracking sessions, GA4 has an event-based data model.

In a world where privacy is becoming increasingly important, it’s a fair assumption that those cookies may become less and less prevalent. This is arguably a net positive for humanity, but for now seems like a big negative for digital marketers.

google analytics 4 vs universal analytics

Tell Me More About Session-Based vs. Event-Based Data Models

Let’s get this straight from Google. The Session Based Model.

In UA properties, Analytics groups data into sessions, and these sessions are the foundation of all reporting. A session is a group of user interactions with your website that take place within a given time frame.

During a session, Analytics collects and stores user interactions, such as pageviews, events, and eCommerce transactions, as hits. A single session can contain multiple hits, depending on how a user interacts with your website.

How about the event-based model?

In GA4 properties, you can still see session data, but Analytics collects and stores user interactions with your website or app as events. Events provide insight on what’s happening in your website or app, such as pageviews, button clicks, user actions, or system events.

Events can collect and send pieces of information that more fully specify the action the user took or add further context to the event or user. This information could include things like the value of purchase, the title of the page a user visited, or the geographic location of the user.

This might not sound like much, but this is a huge, huge difference.

Data As Events vs. Sessions

The table below shows recorded data in Google Analytics. The Universal Analytics property is on the left with different “hit types” corresponding to different types of data. The GA4 property is on the right where all data is an Event.

ga4 events vs ua sessions and pageviews

So as we can see, everything is an Event in GA4.

In Universal Analytics, it is possible to measure events like button clicks, scroll depth, and downloads but these all require the help of Google Tag Manager. In GA4, there are certain events that we do need Google Tag Manager to create (these are called “recommended events” and “custom events”), but there are other events that can be measured with only GA4.

Events in GA4

There are 4 different categories of Events in GA4. This information is pulled from the Google Developers guide for GA4.

  • Category 1 and Category 2- Automatically Collected events and Enhanced Measurement events: I’m grouping both of these types of events together because they are automatically logged from the gtag or gtm configuration. They do not require any additional coding.

  • Here is a full list of automatically collected events. Automatically collected events record the following parameters by default.

    • language
    • page_location
    • page_referrer
    • page_title
    • screen_resolution
  • Page views, scroll tracking, outbound clicks, site search, video engagement, and file downloads are all examples of Enhanced measurement events. In many ways, Enhanced measurement events represent an GA4 upgrade over UA as all of these events would need additional work to track in UA. This guide has an in depth comparison of these particular events in GA4 vs UA.

    enhanced measurement events in ga4

    Category 3 – Recommended Events: These are events with predefined names and parameters that are recommended for different business types. These events require custom code changes, and can be implemented with Google Tag Manager. The specific characteristic that makes them “recommended” is that Google has assigned recommended event names to them. For example, if a visitor adds an item to a shopping cart, Google is recommending that we name that event add_to_cart. When the checkout process begins, Google recommends we call that begin_checkout. If a contact form is submitted, Google advises we name that event generate_lead. Here are is the list of Recommended Events from Google where you can see all of those recommended event names.

  • Category 4 – Custom Event: Like recommended events, custom events require custom code changes and can be implemented with Google Tag Manager. Unlike recommended events, Google hasn’t provided any direction for how to name the events. One example would be if you wanted to track internal link clicks on your site. Outbound (external) link clicks can be tracked with Enhanced Measurement, but you need to do the heavy lifting with a custom event implementation for an internal link click (kind of weird, if you ask me). Read on below for a comparison of how to do that.

How to Track an Event Like Link Clicks in GA4 vs. UA

We know Universal Analytics tracks data based on pageviews. So when a URL loads up, GA can track that pageview. Users actions that don’t prompt a new page to load on the tracked domain will not be tracked. That includes things like clicks to play videos and clicks within the domain or clicks that that send traffic off the domain. To measure “events” like link click tracking or button click tracking, Universal Analytics needs the help of Google Tag Manager.

This can be time consuming and complicated for marketers tackling it for the first time. It involves setting up variables, triggers, and tags (like the tag configured below) to track specific events that will register as data in Google Analytics. This Universal Analytics event tag will track all link clicks that take place on the Root and Branch site. The biggest difference compared to GA4 are the “event parameters” that are pre-designated with names like category, action, and label. These “parameters” send in additional information along with our event that help us make sense of our data.

  • Category = link_click – this is a hard coded event parameter that will show every time the tag fires
  • Action = {{Click URL}} – the curly brackets designate a variable that will capture different data based on the specific link that was clicked
  • Label = {{Page URL}} – the curly brackets designate a variable that will capture different data based on the specific page the visitor was on when the link was clicked

link clicks in ua

Tracking Events in GA4

GA4, on the other hand, is not based on pageview tracking, but is actually built to handle some event tracking out of the box. As we have reviewed, some of these events still do require the help of Google Tag Manager to track properly (recommended events and custom events), while others can be handled exclusively within GA4 (automatically collected events and enhanced measurement events). A great example of the former is internal link click tracking.

Tracking Link Clicks in GA4 vs. UA

For internal link clicks, you will still need Google Tag Manager whether you are using Universal Analytics or GA4. The video below has a guide to setting up that internal link click tracking within GA4.

For an in-depth platform by platform comparison of you can review this guide to Google Analytics link click tracking in UA vs. GA4.

Reporting in Google Analytics 4 vs. Universal Analytics

Universal Analytics seems as though it was built to be a comprehensive collection of standard reports. GA4 has far fewer standard reports and seems best suited to use with custom reports or exporting data. Let’s compare GA4 vs. UA in the area of acquisition reporting, one of the most important types of reporting in Google Analytics.

Acquisition reporting helps us to understand how various types of traffic are performing on our site. If we want to compare the performance of organic search vs. email vs. social media in terms of driving purchases or other conversions, we need Acquisition reporting. It helps us understand overall business performance and channel performance and also provides insight to make budget allocation decisions. Acquisition reporting in GA4 is fundamentally similar to acquisition reporting in UA. But yet, there are some key differences.

GA4 Reports

As you can see in the blue box below, there are a total of 3 standard reports available within the Acquisition reporting bucket in GA4. Noticeably missing is the Source / Medium report (a personal favorite) which provides a great way to measure and analyze traffic performance (for example google / organic vs. bing / organic vs. google / cpc).

ga4 traffic acquisition reports

We need to do additional work in GA4 if we want to analyze our data in different ways. This can take the form of exporting the data for further analysis or creating custom reports.

UA Reports

As you can see in the blue box below, there are far more standard reports available in Universal Analytics. If you expand all of the reporting areas, you will see there are actually 30 standard reports available. There’s a big difference relative to the 3 available in GA4!

And, of course, we see the faithful Source / Medium report among the 30.

ua traffic reports

Creating GA4 Reports

The links below show how to replicate a version of the Source / Medium report, the Landing Page report, and the Campaigns report in GA4. I wouldn’t say they are perfect, but they can be helpful nonetheless.

These reports were all created by modifying and saving a new version of one of the existing reports. New reports can also be created from scratch in GA4 with an “Exploration”.

google analytics 4 reports

Within our reports, we’ll also see some different metrics in GA4 vs. UA.

Metrics in Google Analytics 4 vs. Universal Analytics

There are 3 new metrics we’ll see in our GA4 reports.

  • Engaged session: According to Google the engaged session metric is the count of sessions that lasted longer than 10 seconds, or had a conversion event, or had 2 or more screen or page views.
  • Average engagement time per session. Google says this is the User engagement duration per session. In other words, the amount of time the user is actually engaging with the page (scrolling, etc) and the page is the primary window being viewed on the screen.
  • Engagement rate. Engagement rate is the ratio of Engaged sessions relative to total sessions. If you had 1,000 total sessions and 130 of them qualified as Engaged sessions (per Google’s definition above), the Engagement rate would be 13%.

None of these metrics are available in UA. They replace some metrics that are no longer available in GA4 including average session duration, pages / session, and bounce rate (the percentage of sessions involving a single page view).

I think the loss of bounce rate is particularly notable.

Why Are There Different Metrics in GA4 vs. UA?

This all comes back to the data model. The Universal Analytics data model is based on sessions and pageviews. If everything is based on tracking sessions and views of pages, it’s straightforward to calculate pages / session or bounce rate. It’s a different story in GA4 since the model collects and processes events instead of pageviews and sessions.

Segments in Google Analytics 4 vs. Universal Analytics

Segments allow you to analyze a subset of your Google Analytics data so you can better understand your users and our website (or app). Segments essentially work the same way in GA4 as they do in Universal Analytics. In both GA4 and UA you can analyze up to 4 segments at the same time. However, the types of segments you can create are slightly different.

There are 3 different types of segments we can create in GA4: User segments, Session segments, and Event segments. With Universal Analytics there are only 2 types of segments we can create: User segments and Session segments.

The big difference between GA4 and UA is the process for creating segments. In GA4, segments exist in that “Explorations” area (same place to create custom reports). For an in depth comparison check out this walkthrough of creating custom segments in Google Analytics 4 vs. Universal Analytics.

google analytics 4 explorations

Will Google Analytics 4 Still Be Free?

Yes. Google says, “Google Analytics has always offered a free version in order to help businesses if all sizes and stages better analyze and improve their websites and apps. This mission hasn’t changed.”

According to W3Techs, GA is installed on more than half of all websites on the internet. This is in large part due to the price; Google Analytics has an amazingly robust free version. There is also a paid version available, but the core functionality of the paid vs. free version is essentially the same (the paid version allows for more pageview processing).

Good news. Still can’t beat the price.

Does Attribution Modeling Work the Same in Google Analytics 4 vs Universal Analytics?

When GA4 was first rolled out, it only supported first click attribution and last click attribution. That left out a bunch of options, including position-based attribution, time decay attribution, and linear attribution.

We’ve got good news now in 2022, and attribution modeling is much more robust in GA4. Here’s Google’s own article on attribution in GA4.

How Do I Set Up GA4?

If you create a new Google Analytics property, you’ll see that Google recommends GA4 as the default.

First, go to analytics.google.com and hit the blue “Create Property” button in the Admin section.

Second, give your property a name and select your reporting time zone and currency as shown below. Please note, if you want to create a Universal Analytics property, you can do so by hitting the “Show advanced options” button below.

create ga4 property

Third, create a “data stream”. A data stream is a new term for GA4 and refers to the app type (iOS or Android) or whether it is a website. In the UA days, an app or a website would both be distinct properties. With GA4, these are different “data streams” within a single property. If you’re creating your GA4 property for a website, hit the “Web” option. Then, enter your website URL, give your Stream a name (something like GA4 for NameofWebsite.com works great) and then hit the blue “Create stream” button to get rolling.

create a ga4 data stream

As you can see in the screenshot, some “Enhanced measurement” events like scroll depth tracking, outbound clicks, and pageviews will be automatically recorded. To adjust what events you’ll record, simply hit the gear icon in the bottom right and you can turn events on or off.

The fourth step is to enable data collection by placing the GA4 tracking code on your website or app. Placing the javascript code can be done directly on the site or through Google Tag Manager.

  • This developer guide has instructions to deploy the GA4 tracking code on the site. Note, this is not the best way to do it in my opinion. Google Tag Manager is the way to go for getting GA4 on your site.
  • To deploy the GA4 code on the site through Tag Manager, you can use this support guide or see the section immediately below for everything you need to know.

The fifth step is adding “Recommended Events” to your data stream. Recommended Events have an event name and a trigger that causes the event to fire based on specific parameters.  The events linked here may be suitable for all web properties.

How Do I Deploy GA4 With GTM?

The 5 steps below detail how to deploy GA4 on your site using Google Tag Manager after you’ve followed the first three steps above to create your new GA4 property and data stream. You can also watch this video tutorial if visuals make things easier for you.

Head to Google Tag Manager

First, go to tagmanager.google.com and access your workspace within your container to get started.

Create a New Tag Using the GA4 Configuration

Second, within the Tags section of your Workspace, hit the “NEW” button to create a new tag. Make sure you select the GA4 Configuration as shown below under the tag type.

ga4 tag configuration

Get Your Measurement ID from Google Analytics

Third, head back to Google Analytics and within the Admin section of your GA4 Property find your Measurement ID for your data stream.

Select “Data Streams” (red box) within the Property and then click on the proper data stream (blue box). You’ll see a Measurement ID beginning with G and followed by a dash with 10 other characters (G-XXXXXXXXXX). Copy the Measurement ID.

ga4 measurement id in ga

Configure Your New GA4 Tag

Fourth, head back to Google Tag Manager to configure your new GA4 tag. Paste the Measurement ID (G-XXXXXXXXXX) into the prescribed location as shown in the highlighted box below. Hit the check box to send a page view event when the new property configuration loads as shown.

measurement id for ga4

Finish configuring your new tag by making sure it has an appropriate firing trigger. It should be set to fire on All Pages with page view trigger by default.

Also, give your tag a name you will recognize. We’ll call this one “Google Analytics (GA4)”.

Review Your Tag and Publish the Container

You’ll now see the new tag in your list of tags within your Workspace. In the screenshot below you’ll see our preexisting UA tag on the top of the list and our new GA4 tag that we just configured immediately below. We’ll continue to collect data with both property types for the foreseeable future. More on that below!

Now publish your updated container and GA4 will now be deployed on your site!

new ga4 tag in gtm

Are there Any Additional Benefits of GA4?

Here is what Google has to say on the subject.

  • GA4 can “measure, unify and de-duplicate” user interaction data. This helps us understand the user journey.
  • The new property “adapts to a changing environment” as it relates to privacy.
  • Google Analytics 4 “reveals intelligent business insights” through machine learning.
  • GA4 helps to “more effectively take action on your data” to achieve goals.

In terms of learning the platform, the biggest practical benefit for us is that Google has told us that GA4 will be the new standard. So it’s a question of “when” not “if” it replaces UA for all digital marketers and measurement teams.

So When Should I Discontinue Use of UA?

As of March 16, 2022 we now know the official answer to this. Universal Analytics properties will stop processing hits on July 1, 2023. We have from now until then to get fully up and running with GA4.

Many marketers plan to still use UA as the primary measurement standard for the short term, while focusing on getting up and running with GA4. During that time, they’ll be learning how to use use GA4 and setting up their measurement environment in the new property type. Since we now know when UA will be officially discontinued, it makes sense to prioritize GA4 over UA.

Looking for More Resources on GA4 and UA?

Depending on your skill and comfort level, you may want to consider more free resources like or or taking the plunge and investing in a paid course.

For More Free Resources

I’ve been creating some YouTube videos to help visually show the difference between UA and GA4. Feel free to pop over and subscribe if that sounds interesting to you.

root and branch youtube

Here’s one showing how to set up form submission tracking for Google Analytics 4.

If You Already Have In Depth, Hands on GA4 Experience and Becoming More Advanced is a Top Priority:

If you already have your hands dirty with GA4 and know all about how to work with events (including automatically collected events, enhanced measurement events, recommended events, and custom events) and want to become a more advanced user, I’d recommend you consider a paid training course. Julius Fedorovicius of Analytics Mania has a really good one that is worth a look (and that I have paid for myself).

Julius has agreed to take 10% of the enrollment fee of any students that sign up by clicking through this link and give it to non profits serving the people of Ukraine. This isn’t some affiliate program and I don’t get any kickback. You pay the same amount whether you go through that trackable link or not. There are a lot of big and tough things going on in the world right now (yes, even bigger than Google Analytics 4), and having 10% of your fee help certainly doesn’t hurt.

ga4 training course

More to come in the future. If you have a specific question or topic of interest related to Universal Analytics vs Google Analytics 4, feel free to drop it in the comments below or hit me up on LinkedIn. I’d be glad to hear from you.

Good luck out there!

39 replies
    • Zack Duncan
      Zack Duncan says:

      Hi there! You can link both UA and GA4 to your Google Ads account. And you can set this up from Google Ads (hit ‘Tools and Settings’ and then find ‘Linked Accounts’ under ‘Setup’) or from Google Analytics.

      Although if you use UA for most of your GA reporting currently, it might make sense to still focus on that account link and then only sync up with GA4 once that becomes your standard reporting platform in the future. Good luck!

      Reply
  1. Carmen
    Carmen says:

    Is it ok to have both a UA tracking code and a GA4 tracking code in Tag Manager/on a single website? We had created just the GA4 property initially, then discovered a few months later we’d need a UA property in order to integrate with Search Console. Since we created each property separately, we do not have a combo universal + ua4 property with a connected site tag, so we currently have both the UA & the GA4 codes implemented on the site through Tag Manager

    Reply
    • Zack Duncan
      Zack Duncan says:

      Carmen,

      Your implementation is totally fine. I’m actually doing the exact same thing on the Root and Branch site. Both the UA and GA4 tags are deployed on the site through Tag Manager. All good!

      Feel free to keep me posted if you run into any other questions.

      Thanks,
      Zack

      Reply
      • Laura
        Laura says:

        I have question regarding this – do I implement both codes as normally – each copied in head separately or is there a different way to do this?
        Currently I have created new property and copied the provided code in the head under ga4 code on the site, but the GA universal is code is not tracking data – wondering was there any other way to do this? Or should I be looking for different reason for this issue..

        Reply
        • Zack Duncan
          Zack Duncan says:

          Hi Laura,

          Do you have the option to use Google Tag Manager to deploy your GA4 and UA tags? I’d recommend this approach because it streamlines the tag implementation and also gives you a great platform to deploy further tracking tags in the future (without messing with the backend of your site). I’ve got two links here that I hope will help.

          Here’s an article on mastering the basics of Google Tag Manager. Check out the image at the top to see how the UA and GA4 tags are deployed on this site through Tag Manager.

          Here’s a 5 step guide to installing Google Tag Manager (with pictures). This is for WordPress specifically, but it’s the same basic idea if you have another website platform.

          Good luck!

          Reply
  2. Dylan S
    Dylan S says:

    Thanks for the great resource. You mentioned that you recommend deploying GA4 via Tag Manager, rather than directly implementing the GA4 tracking code. Can you share a bit about why you recommend that please?

    Reply
    • Zack Duncan
      Zack Duncan says:

      Hi Dylan,

      There are two reasons for that recommendation. First, I think it’s frankly a bit easier to deploy GA4 with Tag Manager. For a site that already has Tag Manager, it’s a very straightforward process of simply adding a new tag (takes a couple of minutes). The second reason is that I think most GA4 installations will ultimately need additional event tracking (“recommended events” and “custom events”) in order to be really functional for measurement and reporting. And that additional event tracking will require Google Tag Manager to set up. So GTM becomes an important part of the process either way.

      Of course, if you don’t think you’ll ever need any of that additional event tracking with recommended events and custom events, you might be ok without GTM. Either way, best of luck to you and thanks for coming by to give this a read!

      Reply
  3. Kevin
    Kevin says:

    As of March of 2022 and G4 is still WAY too complicated, I mean overwhelmingly complicated. Google, please do not discontinue Universal Analytics.

    Reply
    • Zack_Duncan
      Zack_Duncan says:

      I tend to agree with you, Kevin. Sadly, Google forgot to ask us before they made the decision (what’s up with that, Google!).

      I paid for a GA4 course (today!) from an instructor who is really knowledgeable. I actually purchased a Google Tag Manager training class from him previously and learned a lot. ANYWAY, I’m going to update this blog with a link to the class for anyone who wants to invest the money and the time to learn the ins and outs of the new platform. He is going to donate 10% of any sales that come through the link to non profits that help support people who going through a tough time and are otherwise in need. Just a heads up in case you are looking to check out paid options in the future.

      Best of luck to you.

      Reply
  4. Mark
    Mark says:

    Great article, a very interesting comparison. I had a chat with Google Support the other day about best practice installation and the advice was confusing at best. I wondered what your thoughts were on best practice setup for existing properties.

    Should I use the GAU code and ‘connected site’ GA4
    Use the GA4 code and ‘connected site’ GAU
    Or put setup both tags individually in GTM

    (Google suggested ‘Best Practice’ would be one of the above)

    Reply
    • Zack_Duncan
      Zack_Duncan says:

      Hi Mark,

      Thanks for coming by and checking this out. Personally, I think the GTM installation for both Google Analytics 4 and Universal Analytics (for those still using it) is *vastly* superior to any others. There are a few reasons:

      – It is fast (here’s how to install GA4 in 5 minutes with GTM if you are interested in a video resource: https://youtu.be/zEhwN_76SfM)
      – It is relatively foolproof (I’ve never had issues with my site or any of the other client sites I’ve worked on).
      – It prevents future mistakes (If you hardcode the GA tracking code, say in the theme of a WordPress site, it might written over with a future theme update. No such risks with GTM)
      – You will likely need GTM for other event tracking work, so why not do everything in one place?

      That’s my experience at least. I hope it helps. If you have a different experience or other questions, feel free to let me know. Good luck!

      Reply
  5. Jon
    Jon says:

    Thanks for the article, very helpful. One question I was wondering if you had experience with is with setting up data layer pushes when using both Universal Analytics and GA4. Is it okay to push both events to the same data layer while UA still exists? Or is it best to create a unique data layer instance so that events don’t get double-tagged or something else weird happening. Thanks for your time!

    Reply
    • Zack_Duncan
      Zack_Duncan says:

      Hi Jon. This definitely falls in the “I’m not sure” bucket for me because I don’t have personal experience. I found this help article from Google related to dataLayer and ecommerce that I think may be at least somewhat instructive. Link and quote below. Thanks…and best of luck!

      https://support.google.com/analytics/answer/10119380?hl=en

      “If you use your existing UA ecommerce implementation (i.e. dataLayer events and gtag.js code) with a GA4 property, your GA4 ecommerce reports will not be complete. The gtag.js library automatically translates some, but not all of the UA event and parameters to what is needed for GA4.

      On the other hand, you should not simply switch to the GA4 event and parameter names either. UA will not collect any data for events that it doesn’t recognize. For example, all GA4 ecommerce events have the parameter item_id instead of id.

      Because of this, the best practice is to have two implementations in place: one for UA and one for your GA4 property.

      Since this will result in sending two events where you would ordinarily only send a single event, you may decide to rely on your UA implementation, and add only the additional events/ parameters required to send data to GA4 properties. However, this requires a deep understanding of the two different sets of events and parameters…”

      Reply

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  13. […] Unlike UA, GA4 allows you to collect and measure data for websites and apps within the same property.  […]

  14. […] Unlike UA, GA4 allows you to collect and measure data for websites and apps within the same property.  […]

  15. […] Unlike UA, GA4 allows you to collect and measure data for websites and apps within the same property.  […]

  16. […] Unlike UA, GA4 allows you to collect and measure data for websites and apps within the same property.  […]

  17. […] Custom segments allow you to analyze a subset of your Google Analytics data so you can better understand your users and our website (or app). Let’s take a look at how to build custom segments in both GA4 and UA. And if you’re interested in a broader comparison of these two property types of Google Analytics first, you can head on over to this comparison guide on GA4 vs. Universal Analytics. […]

  18. […] track! Many of us (like this author) will miss Universal Analytics, but Google has told us that GA4 will be the […]

  19. […] “Google Analytics 4 vs Universal Analytics” by Zack Duncan. Root and Branch Group. February 1, 2021. https://www.rootandbranchgroup.com/google-analytics-4-vs-universal-analytics/ […]

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