Solution : https://service.sap.com/sap/support/notes/108025 (SAP Service marketplace login required)
Key words :
additional key words preq, item category 'u', source code environment, correct earlier releases, attached advance correction, supply key, advance correction, source determination, internal source, purchase requisition
Related Notes :
| 149768 | ME51: Automatic source determination without delivery date |
| 102685 | ME51: Automatic source determination |