Users of SAP ERP applications use sets for various tasks. Account groups, cost center groups, and financial statement versions are all types of sets within the SAP ERP system. A basic set of day-to-day transaction codes relevant for future interest calculation can be configured on a transaction code table. The set can then be added to the substitution configuration Boolean logic that is used to block interest calculation on accounts receivable-related transactions. This set makes future maintenance of the relevant transaction codes easy because you don’t have to revise the substitution configuration every time a transaction change is required to be added or deleted for the interest calculation process. Instead, all you need to do is change the set.