Thanks for posting in the Tableau Community Forums. This is a very interesting use case for Tableau! If you have not seen some of the awesome posts on creating flow diagrams in Tableau, I would start with the following: Decision trees, flow diagrams, sankeys in Tableau... here is a solution !!!
As for tracking a user as they navigate through the site, based on my shallow understanding of Google Analytics, I believe that you would want to evaluate based on Sessions would be the best way to track a user's data across the site.
There might be some additional information for creating reports here: Custom web analytics dashboard? Here's our resource guide.
Hope this helps!
Thanks for your reply Patrick. Before I can start creating a flow diagram, I need to know what data to use. I know about Sessions, but that still doesn't give me any information about how a user flows through the website. As soon as I found a solution I will post it here .