Solution : https://service.sap.com/sap/support/notes/874859 (SAP Service marketplace login required)
Key words :
processing unit '08 = 'manual posting, technical clearingthe actual posting, processing type '08'technical clearing, clear advance payments, relationship '061' = 'tr-lo, pp payment reduction, relationship '061'advance payment, => assign flow type, => assign offsetting flowhere, 4560 a_post op/ap
Related Notes :
| 873773 | BUC: Message 68 674 for account clearing |
| 765794 | BER/STO: Reversal of a paid disbursement |