Solution : https://service.sap.com/sap/support/notes/187138 (SAP Service marketplace login required)
Key words :
additional key words f9o01, foreign key field type, standing order application, 'tools -> abap workbench', -key-fields/candidates, explanatory short text, foreign key, medium field, short text, --> foreign keys
Related Notes :
| 182039 | SAP Banking 4.03A |