Solution : https://service.sap.com/sap/support/notes/850629 (SAP Service marketplace login required)
Key words :
transaction miro 'enter incoming invoice', negative stock quantity negative stock, positive stock quantity positive stock, arise wherea negative stock, call message class m8, sale price valuation, material master record, 'insert command' pushbutton, message short text, message long text
Related Notes :
| 864863 | Composite SAP Note for retail value update |