Hi, i am new on revive ad server. My company requires me to deep learn this application for our own advancement. Long story short, i was studying MSE (Maintenance Statistic Engine), one of its task is Managing Campaign, on which it checks campaign for its expiration. One that bugs me is this task mark campaign as Running while target impressions, clicks or conversions is less or equal to zero. It means campaign is still running if i set target as 0 on dashboard. i am assuming campaign is no longer delivers banner if there is no target impression or target impression is zero, but thats not what happens. I understand to distinguish for unlimited target, revive will set target as -1 on database. But i am still confused by the logic if target <= 0 then campaign is running. Can anyone give me insight or explanation of this. I know i miss something, but still cant find what is it. Thank you