Solution : https://service.sap.com/sap/support/notes/114814 (SAP Service marketplace login required)
Summary : 
      This SAP Note discusses ALE data distribution regarding complete FI documents, starting from Release 3.1I, focusing on the IDoc types FIDCCP01/02 and message types FIDCC1/2 for real-time FI document distribution across decentralized SAP systems. Enhancements in FIDCCP02 include additional table fields necessary for extended withholding tax processing under message types FIDCC1/2. A robust ALE configuration between SAP R/3 systems ensures data integrity and compatibility across releases, with the ALE scenario supporting group arrangements of multiple SAP FI shadow systems and a single FI central receiver system. Scenario limitations involve non-R3 systems, dual-role SAP systems, or use of customer-specific function modules which fall outside standard support.
Key words : 
terms ale  idoc fidccp01 fidccp02 fidcc1  fidcc2  cresta  complete fi documents rfumsv00  idoc_input_fidcc1  idoc_input_fidcc2fidcmt01 fidcmt firoll gal3  fidcch  rollup transaction figurescross-system company code bukrs_glob  t001o  f1302credits augbl extended withholding taxco-pa  e1fiseg-paobjnr  paobjnrrgucomp4  gcar  reconciliation report  ale compare tool  comparison ledgertrwpr trwprc subset gale cofi f002 f001 gal1 reason, components fi-aa asset accountingfi-ap accounts payablefi-ar accounts receivablefi-gl general ledger accounting priority recommendations / additional info category consulting validity software componentfrom rel, subsequentsap_appl30031i 40a40b 45a45b 46a46b 46c46c 470470 500500 600600 602602 603603 604604 605605  support packages & patches support packagessoftware componentreleasesupport packagesap_appl46csapkh46c15 references, sales/purchases extended withholding tax document splitter/online splitter/document splitting, report rfumsv00, message types fidcc1 - complete fi documents fidcc2 - complete fi documents, ale comparison tool gcar, subset 'gal1', ale message type cresta, bseg-augbl = 'ale-external'
Related Notes : 
       
| 1295488 | ALE FI FIDCC1/2: Error in asset line item KOART='A' | 
| 1104309 | ALE FIDCC1/2: F5827 tax items without KTOSL | 
| 826357 | Profit Center Accounting and New General Ledger in SAP ERP | 
| 808521 | IHC: Update with general ledger transfer by IDoc | 
| 802645 | ALE: FM distribution problems | 
| 551035 | IDOC overview in FI | 
| 544415 | FAQ: FI ALE distribution of FI documents | 
| 459938 | FI ALE: new IDoc type of FIDCCP02 and segment extensions | 
| 450076 | Extended withholding tax and ALE | 
| 197951 | ALE FIDCC1/2: Sender PAOBJNR in receiver invalid | 
| 158781 | ALE FI: which applications are updated? | 
| 156942 | FI ALE: status message F1310 is incomplete | 
| 149595 | FI ALE: Indirct quotatn values - new fields in IDoc | 
| 146358 | FI ALE: KKBER that can be changed is not sent | 
| 136500 | FI ALE: Error AA001 fixed asset does not exist, F1308, event | 
| 134620 | FI ALE FIDCC1: RFUMSV00 is incorrect in head office | 
| 109108 | FI ALE FIDCC1: Sending FI doc. to all applications | 
| 47410 | ALE FIDCMT01: FI distribution questions & problems | 
| 588554 | BUC: CML/FI/SL/EC interaction | 
| 1321680 | Digital Invoice Mexico: IDoc basic type FIDCCP02 Extension |