SBPBWBAPI0051_BCS_HEADER is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Structure for Plan Data Transfer (Obsolete?)" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_SBPBWBAPI0051_BCS_HEADER TYPE SBPBWBAPI0051_BCS_HEADER.
The SBPBWBAPI0051_BCS_HEADER table consists of various fields, each holding specific information or linking keys about Structure for Plan Data Transfer (Obsolete?) data available in SAP. These include FISC_YEAR (Fiscal Year), VERSION (Budget version), BUD_CAT (Budget Category)... 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. .