COSSA_VAL 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 "Value Fields for COSSA Structure" 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_COSSA_VAL TYPE COSSA_VAL.
The COSSA_VAL table consists of various fields, each holding specific information or linking keys about Value Fields for COSSA Structure data available in SAP. These include WTG002 (Total Value in Transaction Currency), WTG003 (Total Value in Transaction Currency), WTG004 (Total Value in Transaction Currency), WTG005 (Total Value in Transaction Currency)... 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. .