Solution : https://service.sap.com/sap/support/notes/806063 (SAP Service marketplace login required)
Key words :
account assignment tab, attached correction instructions, commitment item entered, commitment item, item reason, purchase requisition, me51n transaction, error fi311, terms me52nfi311, program error
Related Notes :
| 765927 | Purchase order without invoice item (FI311) |
| 715352 | Purchase order is not updated or rebuilt |
| 682263 | Missing error FI311 in purchase order |