A Comprehensive Guide: Unveiling Event Parameters in Google Analytics 4

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Google Analytics 4 (GA4) is an analytics solution that allows organizations to track and analyze traffic and activity on their websites and apps. GA4 helps organizations understand how visitors interact with their digital platforms by offering detailed insights into user behavior. With enhanced capabilities, it goes beyond typical metrics to provide a more in-depth knowledge of user experiences. This data-driven strategy allows businesses to make more educated decisions about their online initiatives, resulting in better user experiences and overall success.

Importance of Event Tracking in GA4


  • Enhanced Data Granularity: Events provide more granular data, allowing for a more in-depth insight of user behavior than basic metrics.
  • Measuring User Engagement: Events enable organizations to track how people engage with content, products, and features on websites and apps.
  • Identifying Conversion Points: Businesses may identify key conversion points in the user experience by tracking activities like clicks, form submissions, and sales.
  • Tailoring Analytics To Specific Goals: Customizable event monitoring enables firms to match analytics with their specific goals and objectives, giving meaningful and actionable insights.

Understanding Event Parameters

What are Event Parameters?
Event parameters in Google Analytics 4 (GA4) are additional bits of information or details linked with certain events recorded on your website or app. Events indicate user engagements such as clicks, downloads, and video views, while event parameters provide further context for these interactions.

Types of Event Parameters

There are three types of event parameters in Google Analytics 4:

  1. Automatically collected parameters
  2. Custom parameters
  3. User Properties

Automatically Collected Parameters:

Some parameters like language, page_location, page_referrer, page_title, and screen_resolution are automatically collected by GA4. Such parameters are called automatically collected parameters.

How to see Automatically Collected Parameters in GA4 reports?

Step 1:

Navigate to the Reports section in your GA4 Property.

Step 2:

Click on “Events” under Engagement.

Step 3:

Scroll down and then click on an event name. Let’s click on the “user_engagement” event.

Step 4:

You should now see the detailed report about the “user_engagement” event.

Step 5:

Click on the “PARAMETER NAME” drop-down menu on the right-hand side.

Step 6:

Scroll down the drop-down list, and then you should be able to see all the automatically collected parameters.

Custom Parameters:

Custom parameters are variables that can be customized by the user and assigned to events in Google Analytics 4 (GA4). While GA4 includes basic event parameters for typical use cases, custom parameters allow you to personalize event monitoring according to your specific needs.

For example, if you’re tracking a ‘purchase’ event, standard parameters might include ‘item_id’ and ‘quantity’, but you could add custom parameters like ‘discount_code’ or ‘customer_segment’ to gather additional insights.

There are two types of custom parameters:

  1. Text Parameters
  2. Number Parameters

Text Parameters:

Text custom parameters in Google Analytics 4 allow users to create variables that contain textual information about the event.

For example: Suppose you have an e-commerce website, and you want to track a ‘Product View’ event. You can use a text parameter like “product_name” to capture the name of the viewed product. For instance, if a user views a laptop, the “product_name” parameter could be set to “Laptop XYZ”.


Note: Register text parameters as custom dimensions in GA4 for use in reports; avoid registering them as custom metrics. To utilize text parameters effectively, ensure they are designated as custom dimensions within the GA4 user interface.

Number Parameters:

Number custom parameters in GA4 are user-defined variables that contain numerical numbers associated with a certain event.

For example: Continuing with the e-commerce scenario, let’s consider a ‘Purchase’ event. A number parameter, such as “purchase_amount”, can be employed to capture the total value of the items in the user’s cart at the time of purchase. If a user buys products worth $150, the “purchase_amount” parameter would be set to 150.


Note: Register number parameters as custom metrics in GA4 for use in reports; avoid registering them as custom dimensions. To utilize number parameters effectively, ensure they are designated as custom metrics within the GA4 user interface.

User Properties:

User Properties allows you to define and set custom attributes for users, providing additional context to their behavior.

For example: Suppose you have a mobile app, and you want to track the subscription level of your users. You can set a custom user property called “Subscription Level” with possible values like “Free”, “Basic”, and “Premium”. This enables you to segregate and evaluate user activity according to their membership level.

There are two types of user properties:

  1. Predefined User Properties
  2. Custom User Properties

Predefined User Properties:

Predefined user properties in Google Analytics 4 (GA4) are default attributes or characteristics that GA4 automatically collects for each user. These properties provide standard information about users without the need for explicit configuration.

Examples of Predefined User Properties: Age, Country, Gender, Interests, Language, Device Category, etc.

Custom User Properties:

Custom user properties are attributes or characteristics that you can define and set for individual users in Google Analytics 4 (GA4). Unlike predefined user properties that are automatically gathered by GA4, custom user properties allow you to capture and track specific information about user behavior that is relevant to your business goals.

For example, On our e-commerce website, we use a custom user attribute named “Preferred Product Category” to personalize the online shopping experience. This attribute includes categories such as “Electronics,” “Clothing,” and “Home & Garden,” which enables us to understand what our users prefer. This information enables us to tailor the website by displaying relevant products, offering targeted promotions, and creating a more engaging and customized shopping experience.

Importance of correctly defining user parameters


Accurate Data Interpretation:

Well-defined event parameters provide clarity to the data collected, ensuring that the information accurately represents user interactions.


Enhanced User Journey Mapping:

Event parameters provide context for monitored events, including specific information about user actions. Businesses can watch and analyze user interactions at a granular level, allowing them to gain a contextual understanding of user behavior and identify patterns or trends.


Customization for Business Goals:

By defining event parameters, businesses can tailor data collection to specific objectives. This customization enables the measurement of KPIs that are closely aligned with corporate objectives, offering actionable insights for improvement.


Effective Analysis and Reporting:

Properly defined event parameters facilitate more effective analysis and reporting. Businesses can create meaningful reports that showcase the performance of specific events, helping them understand the impact of various interactions on their goals.


Google Analytics 4 (GA4) stands out as a powerful analytics solution, allowing businesses to watch and analyze user activity across their websites and apps. Beyond traditional analytics, GA4’s value resides in its comprehensive capabilities that delve into the intricacies of user behavior. The emphasis on event tracking is especially notable, as it allows organizations to probe deeper into user experiences. This smart use of event tracking provides organizations with the tools they need to obtain deep insights into how people interact with their digital platforms. Such insights, obtained through thorough event tracking, enable organizations to not only make educated decisions, but also fine-tune their online campaigns for maximum success.


  • Why is Event Tracking important in GA4?
    Event monitoring in GA4 is essential for a variety of reasons, including increased data granularity, evaluating user engagement, finding conversion points, and personalizing analytics to specific business objectives. It enables organizations to collect detailed information on user interactions, resulting in more informed decision-making.


  • What are Event Parameters in GA4, and how do they contribute to analytics?
    Event parameters in GA4 are additional pieces of information linked to specific events on a website or app. They provide context for user interactions, helping organizations achieve accurate data interpretation, enhanced user journey mapping, customization for business goals, and effective analysis and reporting.


  • How can I view Automatically Collected Parameters in GA4 reports?
    To view automatically collected parameters in GA4 reports, navigate to the “Reports” section, click on “Events” under Engagement, select an event, and then explore the detailed report. Click on the “PARAMETER NAME” drop-down menu to see all automatically collected parameters associated with the selected event.

About Author

Ananya Seth is a dynamic and skilled IT Professional specializing in Web Analytics and Data Visualization. Serving as a tech consultant, she is dedicated to solving technology-related business problems with innovative solutions. Ananya's expertise spans Core Java, Scripting Languages, Database Administration, Front-End Web Development, and Web Analytics Technologies. In the ever-evolving landscape of information technology, her interest in learning more ranges from Data Analysis to Networking to Cyber Security to Technology Research.

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