Solution : https://service.sap.com/sap/support/notes/435929 (SAP Service marketplace login required)
Key words :
transaction me21, purchase order, purchase requisition, system generates, warning message, overview screen, reference items, terms bsmng, eban-bsmng, rm06hl04 reason
Related Notes :
325489 | ME21: incorrect quantity ordered for Preq. refer. |
171331 | Correction report for quantity ordered in PReq |