Solution : https://service.sap.com/sap/support/notes/381898 (SAP Service marketplace login required)
Key words :
idoc additional key words vbfa, document flow records, inbound delivery types, inbound deliveries, packed automatically, purchase order, purchase orders, partly missing, handling units, automatic packing
Related Notes :
340093 | Automatic packing in inbound delivery VL31 |
134119 | Packing proposal missing in collective delivery processing |