Which GA4 feature allows viewing a list of custom dimensions tied to your data?

• A. Data Studio
• B. Custom Definitions
• C. Audiences
• D. Events

Answer: (B)

Custom Definitions in GA4 is where you define and view the extra data points you’re collecting beyond the defaults. This area lists each custom dimension (and custom metric) you’ve created, showing how it’s mapped to your event parameters and how you can use it in reports. That makes it the place to view a list of custom dimensions tied to your data.

Data Studio (Looker Studio) is a reporting tool that pulls data for dashboards, not where GA4 stores the list of your definitions. Audiences are groups of users for segmentation, built from dimensions and metrics but not a repository for custom definitions. Events are the actions you track (like page_views or clicks); they generate data but don’t house your list of custom dimensions.