Your subscription provides you with unlimited use of most of eve's features.
In order to provide the best experience to all of our customers, we have to impose limits on certain functionality. There are no hard-numbers on these and are subject to a fair usage policy. The general rule is let's play fair, if you play fair, you won't experience any drop in service.
These service limits will never affect your access to the core functionality of eve.
Everyone makes mistakes, and sometimes you won't even know you're going to cause problems. We'll always notify you before you hit these limits and give you a chance to adjust your work accordingly.