Google Analytics, a part of the Google Marketing Platform, is a web analytics service that offers basic analytics tools and statistics for SEO and marketing applications. It is accessible to anyone with a Google Account, and the service is free of charge.
By using Google Analytics, you can track various metrics related to your marketplace's performance, such as the number of visitors, page views, duration of site visits, and traffic sources. This data can be analyzed to gain valuable insights about your marketplace.
To integrate google analytics into your marketplace, you need to get your UA tracking ID from google analytics.
To Get UA Tracking ID,
Go to google.com/analytics
Click Admin in your Universal Analytics property.
In the Property column, click Property Settings.
The Property Settings page displays your UA- ID at the top.
Source: Google Support
5. Copy and paste the tracking code into the “Google Analytics Tracking ID” tab.
For more information refer to Set up Analytics for a website.