Solution : https://service.sap.com/sap/support/notes/939675 (SAP Service marketplace login required)
Key words :
account line item display, check table entries unchanged, 'foreign key field type', t856 check table, 'check required' flag, transaction type field, relevant support package, choose 'foreign keys', green checkmark button, call transaction se11
Related Notes :
| 944955 | FAGLL03: No search help in custom selections |