However, nowhere in the documentation I see where I enter the container ID (GTM-XXXXX) or Tracking ID (UA-XXXXXXX) , I guess RTP is able to figure this information out based on adding firstname.lastname@example.org to Google Analytics account?
I would appreciate if somebody could confirm if my understanding is correct.
I'm not fully immersed with RTP, however I'm familiar with this from a high level.
The RTP Script is to be used in conjunction with the GA/UA Script instead of in place of it. They both collect different sets of data.
I'd like to think of this as a simple one way integration from RTP>GA
RTP Script - Add this to your landing pages so that RTP can collect data from the visitor. It collects all kinds of data, however for this specific scenario, this is the data that it will collect from visitors and push to GA: