Solution : https://service.sap.com/sap/support/notes/551044 (SAP Service marketplace login required)
Summary : 
      The SAP Note outlines the integration and data extraction issues among InfoSources 0FI_*_4, primarily led by 0FI_GL_4 for general ledger data. Previously, dependent InfoSources 0FI_AR_4, 0FI_AP_4, and 0FI_TX_4, representing line items for customers, vendors, and tax data, could not initiate data requests independently and lacked partitioned Initload capability. Updates in BW Plug-in 2002.2 now allow these InfoSources to handle selections by company code and fiscal year/period independently, supporting partitioned data requests in delta Init mode. DataSources can be loaded in any sequence, enhancing flexibility and extraction efficiency.
Key words : 
objvers version               oltpsour datasource               selecto selection options 4, bw plug-ins lower, sales tax databwfi reason, field text               ----------------------------------               fieldnm field, respective productive source system, line item0fi_tx_4 general ledger, fiscal year/period fields, terms affected infosources/datasources, fiscal year/period, bukrs                        selection options
Related Notes : 
       
| 790457 | G/L account balance extraction: Selections are missing | 
| 640633 | Deleting the Init 0FI_GL_4 deletes all BWFI_AEDAT data | 
| 623371 | 0FI_*_4 extractors: Transition to PI 2002.2 and higher | 
| 606493 | Incorrect delta selection | 
| 574714 | BW extraction 0FI_GL_4 blocks online transactions | 
| 560764 | Full upload does not work after decoupling | 
| 515499 | Release restrictions for R/3 Plug-In 2002.1 | 
| 401646 | New DataSources for Line Items from FI-GL, FI-AP, FI-AR |