Solution : https://service.sap.com/sap/support/notes/438648 (SAP Service marketplace login required)
Key words :
additional key words aposfc, prerequisites program error solution, error 'screen output, queue entry occurs, expansion date xxx', hanging queue, material xxx, automatic conversion, planned orders, activated manually
Related Notes :
430680 | APO->R/3: No planned order conversion through error CO646 |
406333 | Screen output without connection to the user |
401097 | Dialog box for BAPI_SALESORDER_CREATEFROMDAT2 |