We're building a separate data warehouse - consisting of known behavioral data - and will be obtaining that data via the REST API. This will be done each time a cookied visitor visits our site. Since you can't grab the LEAD ID from the munchkin cookie, it sounds like we're going to have to make at least one API call for EVERY cookied user (using the cookie ID) just to see if a LEAD ID exists. Obviously, that's a very inefficient process - and I can see us quickly exceeding the API call limit each day. Does anyone have thoughts on how to do this more efficiently?