Solution : https://service.sap.com/sap/support/notes/578253 (SAP Service marketplace login required)
Key words :
sap purchase order transaction me23n, purchase order item, condition types refer, automatically foundgross price, condition type pbxx, shown solution works, system automatically finds, manual gross price, gross price standing, function module bapi_po_create1
Related Notes :
| 571860 | BAPI_PO_CREATE1: Price is not transferred |