A computer-based billing system presents, via an end-user interface, a plurality of exceptions as have occurred with respect to corresponding billing events as pertain to a plurality of billed parties while also presenting exceptions metrics as pertain to this plurality of exceptions. These exceptions metrics include at least one age-related metric, at least one financial-related metric, and at least one count-related metric. These teachings then further provide for permitting the end user to selectively prioritize the presenting of the plurality of exceptions as a function of at least one of these exceptions metrics.