CSS_BCSM10 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 "BCSM10 (BCSS)" 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_CSS_BCSM10 TYPE CSS_BCSM10.
The CSS_BCSM10 table consists of various fields, each holding specific information or linking keys about BCSM10 (BCSS) data available in SAP. These include MNUMM (Character Field Length = 10), MYEAR (4-character number for CSS message link), SERVICE (3-Byte field), SERVICETYP (Single-Character Indicator)... 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. .