Solution : https://service.sap.com/sap/support/notes/320968 (SAP Service marketplace login required)
Key words :
system generates message m8395, additional key words mr01, cash discount amount manually, error message fz326, conventional invoice verification, net document type, corrected - document balance, tax distribution fields, fi-transaction fb01, transaction mr01
Related Notes :
350739 | M8395 during invoice entry in foreign currency |
323492 | MR1M:Problems for payment w/ cash discnt (rounding) |
210740 | FZ326 when paying vendor net invoices |