Systems and methods are provided for generating an accounting document. In one implementation, a computer-implemented method is provided. A message is received that includes operational data. An accounting notification is generated that includes the operational data using a first business object. The accounting notification is processed and the accounting document is generated using a second business object. The accounting document includes a number of posting lines corresponding to the operational data. The accounting document is processed and a set of third business objects is assigned to each posting line. The set of third business objects includes at least one general ledger account business object and a plurality of sub-ledger account business objects. One or more data processing tasks are delegated to the one of the third business objects that are assigned to the given posting line.