Marketing person here (non-technical).
We have our landing pages set up on a subdomain, info.rootdomain.org.
Do I need to create separate everything for the subdomain?
Separate Server Side / Stape?
Separate AdRoll Pixels?
Separate GTM ?
There is no need to create separate everything for the subdomain. You may have one pair of web and server GTM containers for you top level domain and subdomain. Same applies to pixels - you may have one pixel for everything if that suits your requirements.
Thank you VLad, I very much appreciate you answering my question.