FMBPA_S_DOCHEADER 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 "Budgeting Document Header" 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_FMBPA_S_DOCHEADER TYPE FMBPA_S_DOCHEADER.
The FMBPA_S_DOCHEADER table consists of various fields, each holding specific information or linking keys about Budgeting Document Header data available in SAP. These include VALTYPE (BCS Value Type), BUDCAT (Budget Category), PROCESS_UI (Budgeting Process), DOCTYPE (Budget entry document type)... 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. .