Solution : https://service.sap.com/sap/support/notes/864731 (SAP Service marketplace login required)
Key words :
insert additional account assignment fields, additional account assignment fields, customer-specific table groups, rgucrep0 generation report manually, 'g_generate_reporting_structure' function module, id_manual_transport type xflag 5, relevant source code, table enhancement reason, general ledger tables, generation report
Related Notes :
| 1007825 | FAGLL03: Field 'Cost element' not provided for accrual |
| 1005733 | FAGLL03: 'Cost element' field missing for custom selection |