Solution : https://service.sap.com/sap/support/notes/380431 (SAP Service marketplace login required)
Key words :
additional key words transactions, attached source code corrections, completely update order items, symptom order items, /sapapo/bop_updatebackorder processing, order item, backorder processing, /sapapo/bop, /sapapo/bop_worklist, /sapapo/bop_result
Related Notes :
420605 | Composite SAP Note for BOP performance in APO 3.0A |
375193 | Backorder processing: Composite SAP note on posting |