Solution : https://service.sap.com/sap/support/notes/301965 (SAP Service marketplace login required)
Key words :
additional key words order priority, prerequisites solution implement, source code corrections, order priority, production order, apo system, aposfc aprio, retransfer
Related Notes :
456776 | R/3-APO: Order priority for internal production orders |
303882 | Order priority not transferred during order transfer |