Solution : https://service.sap.com/sap/support/notes/315986 (SAP Service marketplace login required)
Key words :
additional key words create budget billing plan, budget billing plan, prerequisites incorrect correction, discount line item, base discount amount, billing document, discount amount, discount calculation, input operand, output operand
Related Notes :
| 199219 | BBP: Do not consider discount based on value 0 |