Hi Neverbirth,
Thanks for showing interest. The minimum number of points needed to start an advertisement campaign is one. Developer gains 1 point by showing 1 advertisement, if developer's User clicks on the Ad, developer gains another 30 points.Same logic is used to reduce the points.If any time the total points become negative or zero, the advertisement campaign will become deactivated, and campaign will wait to gain points to become active.
Will be sharing periodic reports/analytics for Ad campaign with the game developers. At the moments dashboard is not available.
-Ankur