Solution : https://service.sap.com/sap/support/notes/616294 (SAP Service marketplace login required)
Key words :
validity period start date, validity period end date, symptom 1st case, vendor master record, ekko-waers reason, assigned outline agreement, outline agreement, purchase order, header data, purchase requisition
Related Notes :
| 357972 | ME21N: net price and texts incorrect after copying |