Solution : https://service.sap.com/sap/support/notes/968240 (SAP Service marketplace login required)
Key words :
incorrect posting key, negative total net, credit memo clearing, payment clearing items, credit memo, negative items, payment items, payment processing, payment item, billed separately
Related Notes :
| 1156654 | Text for error message VF 219 |
| 988081 | Negative down payment item with negative total net value |
| 199571 | Down payment clearing leads to error message F5704 |
| 193872 | Negative down payment clearing item |