What action should you take in Google Analytics to define a new event that triggers when visitors land on a specific page?

Creating a new event in Google Analytics is the appropriate action to track specific interactions, such as when visitors land on a particular page. By designing a custom event, you can specify the exact conditions under which the event should be triggered.

For instance, if you want to measure the engagement of visitors who land on a landing page, you would create an event that captures this action. This allows you to analyze how many users visit that page and evaluate their behavior, which is important for understanding content performance and user engagement.

Other choices pertain to different functionalities within Google Analytics. Setting up a conversion focuses on identifying key actions that drive business objectives, which can include events but is more about assessing performance rather than defining a new interaction. Enhanced ecommerce is specifically aimed at tracking ecommerce activities rather than simply page views. Defining a custom dimension involves adding extra attributes to your data but does not directly track actions related to visitor behavior on a page. Thus, creating an event is the most direct and effective approach for your specific requirement.