Solution : https://service.sap.com/sap/support/notes/1398266 (SAP Service marketplace login required)
Key words :
backend check required, extended classic pos, prerequisites program error, material / service master, service masters, purchase order, added item, terms lbbp_pdf0q, lbbp_po_appf04 reason, side effect
Related Notes :
| 1509278 | Follow-on note to Note 983495 |
| 1338320 | |
| 1315690 | BBP_POC: Duplication of PO line items during PO check |
| 1308853 | BBP_POC: Other Items removed, on change of one item |
| 1281179 | BBP_POC: MEPO messages are not shown to the users |