FMBUDBCS is a standard SAP Table which is used to store Budgetary ledger account derivation: BCS data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The FMBUDBCS table consists of various fields, each holding specific information or linking keys about Budgetary ledger account derivation: BCS data available in SAP. These include LDGR_AREA (Ledger area), FM_AREA (Financial Management Area), COMP_CODE (Company Code), FISC_YEAR (From year)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .