How Can You Add a Custom Dimension in Google Analytics?

Alexandre Airvault
May 21, 2024
Custom dimensions in Google Analytics allow you to personalize and deepen your analysis by adding unique data that Google doesn't track by default. This article will guide you through the process of adding custom dimensions in Google Analytics 4 (GA4). By following the steps outlined here, you can enhance your ability to track specific data tailored to your needs, giving you greater insights into user behavior and improving your data-driven decisions.

Optimize your Google Ads spending with AI

Get started free

Setting Up Custom Dimensions in Google Analytics 4 (GA4)

To add custom dimensions in GA4, follow these steps:

  1. In Google Analytics, click "Configure" on the left sidebar.
  2. Under "Property," select "Custom definitions."
  3. Click "Create custom dimensions."
  4. Choose the scope of your custom dimension: event-scoped or user-scoped.
    • Event-scoped dimensions apply to a single event, such as a page view or a button click.
    • User-scoped dimensions apply to all events associated with a user, such as a user ID or a user's subscription status.
  5. Enter a name and description for your custom dimension.
  6. Select the event parameter or user property you want to associate with the custom dimension.
  7. Click "Save" to create your custom dimension.

For example, if you run an e-commerce website and want to track the subscription status of your users, you can create a user-scoped custom dimension called "Subscription Status." Associate this dimension with a user property that indicates whether a user is subscribed or not. This way, you can analyze user behavior based on their subscription status across all events.

To learn more about creating event-scoped custom dimensions, refer to the .

Sending Custom Dimension Data to Google Analytics

Once you've set up your custom dimensions in Google Analytics, you need to send the corresponding data from your website or app. Here's how to do it:

  1. If you're using Google Tag Manager (GTM):
    • Create a new user-defined variable for each custom dimension.
    • Set the variable type to "Data Layer Variable" and enter the data layer variable name that holds the custom dimension value.
    • In your Google Analytics tag, under "Configure tag," click "Additional Settings" and then "Custom Dimensions."
    • Add the custom dimension index and select the corresponding user-defined variable.
  2. If you're using the Google Analytics tracking code directly:
    • Modify your tracking code to include the set method for each custom dimension.
    • For example, to set a user-scoped custom dimension with index 1 and value "Premium," use: ga('set', 'dimension1', 'Premium');
    • Place this code before the send method to ensure the custom dimension is sent with all subsequent events.

It's crucial to ensure that the custom dimension index in your tracking code matches the index you set up in Google Analytics. This way, GA can correctly associate the incoming data with the appropriate custom dimension.

For more information on sending custom dimensions using GTM, check out the .

Unlocking the Power of Custom Dimensions in Google Analytics

Custom dimensions in Google Analytics 4 provide a powerful way to enrich your data and gain deeper insights into user behavior. By adding event-scoped and user-scoped custom dimensions, you can:

  • Track specific data points that matter most to your business
  • Segment your users based on unique attributes
  • Analyze user behavior across different dimensions
  • Make data-driven decisions to optimize your website or app

The possibilities are endless when it comes to custom dimensions. Experiment with different types of dimensions to uncover valuable insights about your users. For example:

  • Use event-scoped dimensions to track the performance of specific marketing campaigns or the popularity of certain product categories.
  • Implement user-scoped dimensions to segment users by their loyalty status, acquisition channel, or demographic information.

By combining custom dimensions with the default dimensions and metrics in Google Analytics, you can create a comprehensive view of your users and their interactions with your website or app.

We'd love to hear how custom dimensions have improved your data analysis and decision-making process. Share your experiences and insights in the comments below, and let's learn from each other's successes and challenges.

Start creating custom dimensions in Google Analytics 4 today, and take your data analysis to the next level. With the right custom dimensions in place, you'll be well on your way to making more informed, data-driven decisions that drive your business forward.

Optimize your Google Ads spending with AI

Get started free

On the same topic...

How Can You Create a Filter in Google Analytics?

Learn step-by-step how to create powerful filters in Google Analytics to refine data and enhance insights. Boost your analytics skills today!

How Can You Create Events in Google Analytics 4?

Learn step-by-step how to create events in Google Analytics 4 for advanced tracking and insights. Boost your analytics skills today!

How Can You Create a Segment in Google Analytics?

Learn step-by-step how to create a segment in Google Analytics to enhance data analysis and improve marketing strategies. Expert guide inside!

How Can You Create a Campaign in Google Analytics?

Learn step-by-step how to create a campaign in Google Analytics with our comprehensive guide for effective digital marketing strategies.

How Do You Create an Audience in Google Analytics?

Learn step-by-step how to create targeted audiences in Google Analytics to optimize marketing strategies and boost website performance. Expert guide here.

How Can You Create a Dashboard in Google Analytics?

Learn step-by-step how to create a comprehensive dashboard in Google Analytics to track and analyze website performance effectively. Boost your analytics skills now!

How Do You Create a New Property in Google Analytics?

Learn step-by-step how to create a new property in Google Analytics to track website performance effectively. Expert guide for beginners.

How Can You Create a Custom Report in Google Analytics?

Learn step-by-step how to create custom reports in Google Analytics to track and analyze key metrics for your website's performance.