BAPICOBL_AAT 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 "Assignment Types for CO Account Assignments" 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_BAPICOBL_AAT TYPE BAPICOBL_AAT.
The BAPICOBL_AAT table consists of various fields, each holding specific information or linking keys about Assignment Types for CO Account Assignments data available in SAP. These include AAT_ORDERID (Account assignment type: Order), AAT_PROJECT (Project account assignment type), AAT_COST_OBJ (Account Assignment Type: Cost Object), AAT_NETWORK (Account Assignment Type: Network)... 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. .