This picture illustrates how rebate process was used in ECC and how it is simplified in SAP S/4HANA. It is neither required to update the billing document in rebate agreement (condition contract) nor separate tables (like VBOX as in case of ECC). In S/4HANA, a condition contract is created instead. This contract outlines the terms of the rebate, including the calculation basis, the rebate rate, and the timeframe for the rebate.