BUS_RETURN 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 "Business Partner: Complex Return Structure for Messages" 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_BUS_RETURN TYPE BUS_RETURN.
The BUS_RETURN table consists of various fields, each holding specific information or linking keys about Business Partner: Complex Return Structure for Messages data available in SAP. These include ID (Message Class), NUMBER (Message Number), MESSAGE (Message Text), LOG_NO (Application log: log number)... 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. .