Solution : https://service.sap.com/sap/support/notes/938251 (SAP Service marketplace login required)
Key words :
'reference purchase order' refbs field, change default fields, reference purchase order, relevant correction instructions, terms ekpo-refbs, convert purchase requisitions, mepoitem-refbs, purchase order, purchase orders, ekpo-refps
Related Notes :
| 1066892 | MEPO BadI - no reference when copying item within PO |
| 1023246 | IS-OIL MEPO EXCISE DUTY 2STEP TRANSFER COPY/CHANGE MODE |
| 1015644 | ME21N: Problems when copying purchase orders |
| 357972 | ME21N: net price and texts incorrect after copying |