GA4 How track the behavior and activity the registered persons

I would like to know what actions and data are accessed by individuals registered with a login and password on the Webflow website. I would like to see this in GA4. I have PDF files and course videos on my website and I want to know exactly what each registered user is doing on my site."

There are mechanism in GA4 that allow you to specify a User identifier, and track user-specific actions. I’d generally recommend using GTM as the layer in-between, it’s a bit cleaner to integrate with the datalayer.

Getting actual user info depends on the platform you’re using. Memberstack has a userID you can access, otherwise if you’re using Webflow User Account you’d need something like SA5 Current User Info to access it.