Solution : https://service.sap.com/sap/support/notes/383879 (SAP Service marketplace login required)
Key words :
additional key words idoc, enter text'confirmation category &, start transaction se91 2, enter /afs/idoc, start transaction se37 2, item & schedule line &, schedule line number, 'import' tab page 4, internal confirmation category 1, message class field 3
Related Notes :
| 414218 | AFS V2.5B fixpack #03 including Hot Packages 35-40 |