The campaign is successful when the charitable giving total exceeds the goal(s).
The priority being funded by the campaign is successful when it is implemented, or built, or started.
The difference between the campaign and the priorities it funds becomes apparent in how we communicate progress in stories (i.e., the campaign’s progress or the priority’s progress?), how we report (i.e., are we reporting on the campaign or the priority?), and, even, how we celebrate (i.e., are we celebrating the campaign or celebrating the priority?).
A campaign can be successful, even when a priority is not. Not ideal, of course.
But, still accurate and important.