Actually, I think I may have found the answer. The Adobe documentation
is difficult, at best, to search, but I used the terms "processing rules
limits" and found this page (if you simply click the link below, it will
take you to the very top of the release notes page; you'll need to click
the link on the page for Analytics and then scroll down, or you can copy
the URL below into your browser
bar):https://marketing.adobe.com/resources/help/en_US/whatsnew/06182015.html#analytics__features_analytic...