Solution : https://service.sap.com/sap/support/notes/310998 (SAP Service marketplace login required)
Key words :
additional key words eban-bsmng, message 06589 'materials/services, assigned purchase requisitions', error message, purchase requisition, purchase requisition & &, fully ordered, me58 'ordering, assignment list, program error
Related Notes :
| 378335 | ME57/ME21: Block when converting purchase requisitions |
| 215958 | ME21N: No quantity check when converting PReq to PO |
| 109143 | MD04: Multiple purchase orders of SD PReqs is possible |