Solution : https://service.sap.com/sap/support/notes/497932 (SAP Service marketplace login required)
Key words :
attached source code corrections, complete delivery flag, 'availability check' pushbutton, availability check occurs, overconfirmation occurs, sales order, requested quantity, item directly, pressing enter, apo release >= 3
Related Notes :
| 440179 | Global ATP in APO (Releases 3.0, 3.1) - Composite SAP note |