RCAPTR_MESSAGES 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 "Structure for Messages to be Displayed" 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_RCAPTR_MESSAGES TYPE RCAPTR_MESSAGES.
The RCAPTR_MESSAGES table consists of various fields, each holding specific information or linking keys about Structure for Messages to be Displayed data available in SAP. These include INOACC_PLANNED_DISAGIO_T (Ind. Accrual/Deff. Could Not Run Due to Planned Discount), INOACC_MSGTYPE (Error Severity of TB_NOACC_PLANNEDDISAGIO), IMR_BASIS_MISSING_S (Indicator Copy Basis for Repayment Change Exists), IMR_BASIS_MISSING_T (Indicator Copy Basis for Repayment Change Exists)... 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. .