MCVBRPUSR 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 "User Structure: Billing Document - Item Data" 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_MCVBRPUSR TYPE MCVBRPUSR.
The MCVBRPUSR table consists of various fields, each holding specific information or linking keys about User Structure: Billing Document - Item Data data available in SAP. These include /BEV3/CHART (Sales Type), /BEV3/CHAT (Total Quantity in Statistics UoM), /BEV3/CHAUTAF (Security Deposit Request), /BEV3/CHAUTAW (Security Deposit Statement)... 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. .