Supersede rules for a tariff charge can be defined to replace rating results for a specific tariff charge, or to replace all previously computed tariff charges for the same charge level (that is, condition or option). When tariff charge has been configured to supersede all previously computed charges, the comparison will be independently performed for the amounts associated with each previously computed tariff charge.
For example: Assume four conditions A, B, C and D are configured for a tariff service, with condition D superseding all when greater. If conditions A, B and C rate at $100 each ($300 collectively) and D rates at $150, condition D will supersede A, B and C. If one of the conditions rated at greater than $150, that condition will not be superseded, but the other two will. When at least one condition has been superseded, the results for condition D will be preserved, otherwise it will not be returned. If A, B and C all fail to rate, the results for condition D will be preserved as there was nothing for it to be compared against.