What, if any, are the impacts of archiving on RCA? I read somewhere that archived Programs must have a least one Period Cost associated to them in order to continue to appear in RCA. Is that true? Are there any other things I should take into consideration? I want to make sure prior to implementing an archiving process that RCA reporting will not be affected.
There is no impact AFAIK. The point of archiving is to ensure the data is retained while you no longer have to see the old stuff.
Program Cost is required if you use Normal Reporting setting. Always use inclusive.