So I saw some old (2+ yrs) comments about this that implied you had to add a field to the CRFs to capture the site.. I was hoping this flaw isn't still around. As I have said in some other messages I'm experimenting to see if I can use OC in a future study so I'm trying to get what we already have in our current EDC. Since we have a lab norms/ranges subsystem I need to find a way to do this in OC. . I see in the forums people use Rules for this. I saw on the Demo OC site some lab range rules and they referenced a site id that is captured in a CRF.. I really have an issue with asking the user to capture data that is already in the system.. just feels wrong. . So is there a better way to get the site id in a rule or is this a show stopper for me?