In site builder , the below events can be tracked.
Page Hit Reports
Web Sales Reports
Keyword and Referrer Reports
Web Activity Reports
Internal Search Reports
Using Tracking Pixels for Analytics
Of these Web Sales Reports and Web Activity Reports can be tracked in SCA using SuiteCommerce Analytics Data, Google Analytics 4 (with Google Tag Manager Commerce Extension). To enable we must add the respective extensions for that.
Note: For the accounts which is upgraded from sitebuilder to SCA navigations for the above reports can be seen. But those will only generate the reports of site builder domain. For SCA domain we must either use SuiteCommerce Analytics Data, Google Analytics 4